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          <p>Using splines. CE Tutorial. Numerical methods. Chemical Engineering, October 26, 1987. In regions of sharrply different behavior, splines are often superior to polynomials in generating   x - y relationships  from data.Example 1</p>
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      <math decimalPlaces="7">
        <input>
          <e type="operand">n</e>
        </input>
        <result action="numeric">
          <e type="operand">512</e>
        </result>
      </math>
    </region>
    <region left="18" top="1053" width="155" height="33" color="#400000" fontSize="10">
      <math decimalPlaces="7">
        <input>
          <e type="operand">ε</e>
        </input>
        <result action="numeric">
          <e type="operand">8.8754979</e>
          <e type="operand">10</e>
          <e type="operand">9</e>
          <e type="operator" args="1">-</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">*</e>
        </result>
      </math>
    </region>
    <region left="18" top="1080" width="122" height="24" color="#400000" fontSize="10">
      <math decimalPlaces="7">
        <input>
          <e type="operand">dint</e>
          <e type="operand">dint</e>
          <e type="operand">ε</e>
          <e type="operator" args="2">+</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="0" top="1107" width="52" height="23" border="true" color="#000000" bgColor="#dddddd" fontSize="10" isBreakable="false">
      <text lang="rus" fontFamily="Liberation Sans" fontSize="10">
        <content>
          <p style="font-family: Liberation Mono; background-color: #dddddd;">Ответ:</p>
        </content>
      </text>
      <text lang="eng" fontFamily="Liberation Sans" fontSize="10">
        <content>
          <p style="font-family: Liberation Mono; background-color: #dddddd;">Result:</p>
        </content>
      </text>
    </region>
    <region left="0" top="1143" width="148" height="24" color="#400000" fontSize="10">
      <math decimalPlaces="7">
        <input>
          <e type="operand">dint</e>
        </input>
        <result action="numeric">
          <e type="operand">219.8233389</e>
        </result>
      </math>
    </region>
    <region left="252" top="1152" width="264" height="50" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">AUC</e>
          <e type="operand">218.8</e>
          <e type="operand" style="unit">g</e>
          <e type="operator" args="2">*</e>
          <e type="operand" style="unit">min</e>
          <e type="operand" style="unit">gal</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">:</e>
        </input>
        <result action="numeric">
          <e type="operand">3468.0505</e>
          <e type="operand" style="unit">s</e>
          <e type="operand" style="unit">kg</e>
          <e type="operator" args="2">*</e>
          <e type="operand" style="unit">m</e>
          <e type="operand">3</e>
          <e type="operator" args="2">^</e>
          <e type="operator" args="2">/</e>
          <e type="operator" args="2">*</e>
        </result>
      </math>
    </region>
    <region left="18" top="1206" width="592" height="23" color="#000000" fontSize="10">
      <text lang="eng" fontFamily="Arial" fontSize="10">
        <content>
          <p>Now we can plot the graph for the experimental data and the interpolated curve with cubic splines.</p>
        </content>
      </text>
    </region>
    <region left="27" top="1251" width="240" height="158" color="#000000" fontSize="10">
      <plot type="2d" render="lines" scale_x="0.361101212866081" scale_y="0.523401402899658" scale_z="0.842943193383929" rotate_x="0" rotate_y="0" rotate_z="0" transpose_x="-102" transpose_y="-47" transpose_z="0">
        <input>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand" style="string">.</e>
          <e type="operand">10</e>
          <e type="operand" style="string">Dark Blue</e>
          <e type="function" args="5">augment</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand">x</e>
          <e type="function" args="3">cinterp</e>
          <e type="operand">x</e>
          <e type="operand">a</e>
          <e type="operand">b</e>
          <e type="function" args="3">lele</e>
          <e type="operand" style="string"></e>
          <e type="function" args="3">cases</e>
          <e type="operand">2</e>
          <e type="operand">1</e>
          <e type="function" args="4">sys</e>
        </input>
      </plot>
    </region>
    <region top="1494" color="#000000">
      <area collapsed="true">
        <title lang="eng">
          <content>
            <p>CSspline</p>
          </content>
        </title>
      </area>
      <region left="54" top="1530" width="426" height="238" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Index in X for the interval containing x, assuming that  <br />X is in ascending order.</p>
            </content>
          </description>
          <input>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operand">n\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="1">length</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="function" args="3">lele</e>
            <e type="operand">x\032E\</e>
            <e type="operand">2</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">*</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="function" args="3">ltlt</e>
            <e type="operand">1</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operand">2</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">*</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="3">lelt</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="operand">n\0324\</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operator" args="2">≤</e>
            <e type="function" args="1">vectorize</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">findrows</e>
            <e type="function" args="1">rows</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="3">if</e>
            <e type="function" args="3">if</e>
            <e type="operand" style="string">CS.L: Value outside of range.</e>
            <e type="function" args="1">error</e>
            <e type="function" args="3">if</e>
            <e type="operand">2</e>
            <e type="operand">1</e>
            <e type="function" args="4">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="1809" width="482" height="72" color="#000000" fontSize="10">
        <math optimize="2" breaking="40">
          <input>
            <e type="operand">t\032E\</e>
            <e type="operand">h\032E\</e>
            <e type="operand">y\032E\.0</e>
            <e type="operand">y\032E\.1</e>
            <e type="operand">y\032E\''.0</e>
            <e type="operand">y\032E\''.1</e>
            <e type="function" args="6">CS.1</e>
            <e type="operand">t\032E\</e>
            <e type="operand">t\032E\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operand">y\032E\''.0</e>
            <e type="operand">t\032E\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="operand">3</e>
            <e type="operator" args="2">/</e>
            <e type="operand">y\032E\''.1</e>
            <e type="operand">y\032E\''.0</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operand">h\032E\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">h\032E\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">y\032E\.1</e>
            <e type="operator" args="2">+</e>
            <e type="operand">y\032E\.0</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operand">y\032E\.0</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="1899" width="402" height="128" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Cubic Spline interpolation function.</p>
            </content>
          </description>
          <input>
            <e type="operand">M\032E\</e>
            <e type="operand">x\032E\</e>
            <e type="function" args="2">CS</e>
            <e type="operand">X\032E\</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">T\032E\</e>
            <e type="operand">1</e>
            <e type="operand">4</e>
            <e type="function" args="6">mat</e>
            <e type="operand">M\032E\</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="operand">k\0324\</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operator" args="2">:</e>
            <e type="operand">h\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operand">h\0324\</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="function" args="6">CS.1</e>
            <e type="operand">4</e>
            <e type="operand">1</e>
            <e type="function" args="6">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="2070" width="520" height="172" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Cubic Spline Derivative.</p>
            </content>
          </description>
          <input>
            <e type="operand">M\032E\</e>
            <e type="operand">x\032E\</e>
            <e type="function" args="2">CS.D</e>
            <e type="operand">X\032E\</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">T\032E\</e>
            <e type="operand">1</e>
            <e type="operand">4</e>
            <e type="function" args="6">mat</e>
            <e type="operand">M\032E\</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="operand">k\0324\</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operator" args="2">:</e>
            <e type="operand">h\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">t\0324\</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
            <e type="operand">2</e>
            <e type="operand">t\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">*</e>
            <e type="operand">t\0324\</e>
            <e type="operand">2</e>
            <e type="operator" args="2">^</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">h\0324\</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">+</e>
            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="2277" width="347" height="108" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Cubic Spline Second Derivative.</p>
            </content>
          </description>
          <input>
            <e type="operand">M\032E\</e>
            <e type="operand">x\032E\</e>
            <e type="function" args="2">CS.D2</e>
            <e type="operand">X\032E\</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">T\032E\</e>
            <e type="operand">1</e>
            <e type="operand">4</e>
            <e type="function" args="6">mat</e>
            <e type="operand">M\032E\</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="operand">k\0324\</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operator" args="2">:</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">x\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="operand">3</e>
            <e type="operand">1</e>
            <e type="function" args="5">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="2430" width="548" height="650" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Cubic Spline Integral.</p>
            </content>
          </description>
          <input>
            <e type="operand">M\032E\</e>
            <e type="operand">a\032E\</e>
            <e type="operand">b\032E\</e>
            <e type="function" args="3">CS.I</e>
            <e type="operand">a\032E\</e>
            <e type="operand">b\032E\</e>
            <e type="operator" args="2">&gt;</e>
            <e type="operand">M\032E\</e>
            <e type="operand">b\032E\</e>
            <e type="operand">a\032E\</e>
            <e type="function" args="3">CS.I</e>
            <e type="operator" args="1">-</e>
            <e type="operand">a\032E\</e>
            <e type="operand">b\032E\</e>
            <e type="operator" args="2">≡</e>
            <e type="operand">0</e>
            <e type="operand">X\032E\</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">T\032E\</e>
            <e type="operand">1</e>
            <e type="operand">4</e>
            <e type="function" args="6">mat</e>
            <e type="operand">M\032E\</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="operand">i\0324\</e>
            <e type="operand">a\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operator" args="2">:</e>
            <e type="operand">j\0324\</e>
            <e type="operand">b\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="2">CS.L</e>
            <e type="operator" args="2">:</e>
            <e type="operand">I\0324\</e>
            <e type="operand">0</e>
            <e type="operator" args="2">:</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="function" args="5">mat</e>
            <e type="operand">k\0324\</e>
            <e type="operand">i\0324\</e>
            <e type="operand">j\0324\</e>
            <e type="function" args="2">range</e>
            <e type="operand">h\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">I\0324\</e>
            <e type="operand">I\0324\</e>
            <e type="operand">h\0324\</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="operand">h\0324\</e>
            <e type="operand">2</e>
            <e type="operator" args="2">^</e>
            <e type="operand">12</e>
            <e type="operator" args="2">/</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">+</e>
            <e type="operator" args="2">:</e>
            <e type="operand">2</e>
            <e type="operand">1</e>
            <e type="function" args="4">line</e>
            <e type="function" args="3">for</e>
            <e type="operand">a\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">≠</e>
            <e type="operand">d\0324\</e>
            <e type="operand">a\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">h\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">t\0324\</e>
            <e type="operand">d\0324\</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="function" args="5">mat</e>
            <e type="operand">s\0324\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">t\0324\</e>
            <e type="operand">4</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">V\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">t\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">V\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">I\0324\</e>
            <e type="operand">I\0324\</e>
            <e type="operand">s\0324\</e>
            <e type="operand">d\0324\</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">6</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operand">t\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">i\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">d\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">3</e>
            <e type="operand">1</e>
            <e type="function" args="5">line</e>
            <e type="operand">I\0324\</e>
            <e type="function" args="3">if</e>
            <e type="operand">b\032E\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">≠</e>
            <e type="operand">d\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">b\032E\</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">h\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">t\0324\</e>
            <e type="operand">d\0324\</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
            <e type="operand">1</e>
            <e type="operand">3</e>
            <e type="function" args="5">mat</e>
            <e type="operand">s\0324\</e>
            <e type="operand">V\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">t\0324\</e>
            <e type="operand">4</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">V\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">t\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">V\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">V\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">I\0324\</e>
            <e type="operand">I\0324\</e>
            <e type="operand">s\0324\</e>
            <e type="operand">d\0324\</e>
            <e type="operand">h\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operand">6</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">2</e>
            <e type="operator" args="2">/</e>
            <e type="operand">t\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">j\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">+</e>
            <e type="bracket">(</e>
            <e type="operand">d\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">3</e>
            <e type="operand">1</e>
            <e type="function" args="5">line</e>
            <e type="operand">I\0324\</e>
            <e type="function" args="3">if</e>
            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">line</e>
            <e type="function" args="3">if</e>
            <e type="function" args="3">if</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region left="54" top="3132" width="565" height="711" color="#000000" fontSize="10">
        <math optimize="2">
          <description active="true" position="Top" lang="eng">
            <content>
              <p>Cubic Spline interpolation vector of coefficients.</p>
            </content>
          </description>
          <input>
            <e type="operand">X\032E\</e>
            <e type="operand">Y\032E\</e>
            <e type="function" args="2">CS.V</e>
            <e type="operand">n\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="function" args="1">length</e>
            <e type="operator" args="2">:</e>
            <e type="operand">c\0324\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="1">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">d\0324\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operand">0</e>
            <e type="operator" args="2">:</e>
            <e type="operand">b\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">3</e>
            <e type="operator" args="2">/</e>
            <e type="operand">c\0324\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">6</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">c\0324\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">6</e>
            <e type="operand">b\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">/</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">:</e>
            <e type="operand">d\0324\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">1</e>
            <e type="operand">b\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">3</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">Y\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">2</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">:</e>
            <e type="operand">n\0324\</e>
            <e type="operand">3</e>
            <e type="operator" args="2">&gt;</e>
            <e type="operand">k\0324\</e>
            <e type="operand">3</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="function" args="2">range</e>
            <e type="operand">b\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">3</e>
            <e type="operator" args="2">/</e>
            <e type="operand">c\0324\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">6</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">c\0324\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">+</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
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            <e type="operator" args="2">:</e>
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            <e type="operand">1</e>
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            <e type="operator" args="2">+</e>
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            <e type="operand">X\032E\</e>
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            <e type="operator" args="2">/</e>
            <e type="operand">Y\032E\</e>
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            <e type="operand">Y\032E\</e>
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            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">X\032E\</e>
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            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
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            <e type="operator" args="2">-</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">-</e>
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            <e type="operand">1</e>
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            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
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            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="operand">6</e>
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            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">:</e>
            <e type="operand">3</e>
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            <e type="operand" style="string"></e>
            <e type="function" args="3">if</e>
            <e type="operand">a\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">2</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operator" args="1">-</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
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            <e type="operand">2</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
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            <e type="operator" args="2">-</e>
            <e type="operator" args="2">:</e>
            <e type="operand">b\0324\</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
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            <e type="operand">1</e>
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            <e type="operator" args="2">:</e>
            <e type="operand">d\0324\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="function" args="2">el</e>
            <e type="operand">X\032E\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
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            <e type="operand">2</e>
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            <e type="function" args="2">el</e>
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            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="operand">a\0324\</e>
            <e type="operator" args="2">*</e>
            <e type="operator" args="2">-</e>
            <e type="operand">b\0324\</e>
            <e type="operator" args="2">/</e>
            <e type="operator" args="2">:</e>
            <e type="operand">k\0324\</e>
            <e type="operand">n\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="bracket">(</e>
            <e type="operand">1</e>
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            <e type="operand">d\0324\</e>
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            <e type="function" args="2">el</e>
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            <e type="function" args="2">el</e>
            <e type="operand">d\0324\</e>
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            <e type="operand">1</e>
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            <content>
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            <e type="operand">x\0324\</e>
            <e type="operand">i</e>
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            <e type="operator" args="2">+</e>
            <e type="operand">1</e>
            <e type="operand">1</e>
            <e type="function" args="3">line</e>
            <e type="operator" args="2">:</e>
            <e type="operand">Z\0324\</e>
            <e type="operand" style="string">g#</e>
            <e type="operand">a\032E\</e>
            <e type="operand">b\032E\</e>
            <e type="function" args="3">APlot</e>
            <e type="operator" args="2">:</e>
            <e type="operand">z\0324\</e>
            <e type="operand">Z\0324\</e>
            <e type="operand">1</e>
            <e type="function" args="2">el</e>
            <e type="operator" args="2">:</e>
            <e type="operand">k\0324\</e>
            <e type="operand">2</e>
            <e type="operand">Z\0324\</e>
            <e type="function" args="1">length</e>
            <e type="function" args="2">range</e>
            <e type="operand">Z\0324\</e>
            <e type="operand">k\0324\</e>
            <e type="operand">1</e>
            <e type="operator" args="2">-</e>
            <e type="function" args="2">el</e>
            <e type="function" args="1">Re</e>
            <e type="operand">Z\0324\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="function" args="1">Re</e>
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            <e type="operand">z\0324\</e>
            <e type="operand">Z\0324\</e>
            <e type="operand">k\0324\</e>
            <e type="function" args="2">el</e>
            <e type="function" args="2">stack</e>
            <e type="function" args="1">eval</e>
            <e type="operator" args="2">:</e>
            <e type="function" args="3">if</e>
            <e type="function" args="3">for</e>
            <e type="operand">z\0324\</e>
            <e type="function" args="1">Re</e>
            <e type="operand">z\0324\</e>
            <e type="function" args="1">Im</e>
            <e type="function" args="2">CS.V</e>
            <e type="function" args="1">eval</e>
            <e type="operand">5</e>
            <e type="operand">1</e>
            <e type="function" args="7">line</e>
            <e type="operator" args="2">:</e>
          </input>
        </math>
      </region>
      <region top="4158" color="#000000">
        <area terminator="true" />
      </region>
    </region>
    <region left="297" top="4176" width="54" height="24" color="#000000" fontSize="10">
      <math>
        <description active="true" position="Right" lang="eng">
          <content>
            <p>Tangent point</p>
          </content>
        </description>
        <input>
          <e type="operand">c</e>
          <e type="operand">17</e>
          <e type="operator" args="2">:</e>
        </input>
      </math>
    </region>
    <region left="0" top="4212" width="201" height="180" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">MC</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="function" args="2">CS.V</e>
          <e type="operator" args="2">:</e>
          <e type="operand">x</e>
          <e type="function" args="1">f</e>
          <e type="operand">MC</e>
          <e type="operand">x</e>
          <e type="function" args="2">CS</e>
          <e type="operator" args="2">:</e>
          <e type="operand">dc</e>
          <e type="operand">MC</e>
          <e type="operand">c</e>
          <e type="function" args="2">CS.D</e>
          <e type="operator" args="2">:</e>
          <e type="operand">yc</e>
          <e type="operand">c</e>
          <e type="function" args="1">f</e>
          <e type="operator" args="2">:</e>
          <e type="operand">Π</e>
          <e type="operand">x</e>
          <e type="function" args="1">f</e>
          <e type="operand">y</e>
          <e type="operand">yc</e>
          <e type="operator" args="2">-</e>
          <e type="operand">dc</e>
          <e type="operand">x</e>
          <e type="operand">c</e>
          <e type="operator" args="2">-</e>
          <e type="bracket">(</e>
          <e type="operator" args="2">*</e>
          <e type="operator" args="2">-</e>
          <e type="operand">X</e>
          <e type="operand">Y</e>
          <e type="operand" style="string">.</e>
          <e type="function" args="3">augment</e>
          <e type="operand">c</e>
          <e type="operand">yc</e>
          <e type="operand" style="string">x</e>
          <e type="function" args="3">augment</e>
          <e type="operand">4</e>
          <e type="operand">1</e>
          <e type="function" args="6">sys</e>
          <e type="operator" args="2">:</e>
          <e type="operand">5</e>
          <e type="operand">1</e>
          <e type="function" args="7">line</e>
        </input>
      </math>
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      <xyplot width="453" height="310" points="100" name="XYPlot">
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        <description active="false" position="Top" lang="eng">
          <content>
              <p>CS Interpolation</p>
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    <region left="207" top="4392" width="59" height="69" color="#000000" fontSize="10">
      <math>
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          <e type="operand">a</e>
          <e type="operand">b</e>
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        </input>
      </math>
    </region>
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      <math>
        <input>
          <e type="operand">MC</e>
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          <e type="function" args="3">CS.I</e>
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      </math>
    </region>
    <region left="9" top="4455" width="154" height="30" border="true" color="#000000" fontSize="10">
      <math>
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          <e type="operand">MC</e>
          <e type="operand">c</e>
          <e type="function" args="2">CS.D</e>
        </input>
        <result action="numeric">
          <e type="operand">2.9863</e>
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      </math>
    </region>
    <region left="207" top="4473" width="53" height="26" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">c</e>
          <e type="function" args="1">f'</e>
        </input>
      </math>
    </region>
    <region left="9" top="4491" width="160" height="30" border="true" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">MC</e>
          <e type="operand">c</e>
          <e type="function" args="2">CS.D2</e>
        </input>
        <result action="numeric">
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      </math>
    </region>
    <region left="207" top="4500" width="61" height="26" color="#000000" fontSize="10">
      <math>
        <input>
          <e type="operand">c</e>
          <e type="function" args="1">f''</e>
        </input>
      </math>
    </region>
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      <math>
        <input>
          <e type="operand">Alvaro</e>
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      </math>
    </region>
  </regions>
</worksheet>