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      <p>?</p>
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      <p>Chord method (Ioan prgm):</p>
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      <p>Chord method as function (Ioan prgm):</p>
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        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">6</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="8">line</e>
        <e type="function" preserve="true" args="2">while</e>
        <e type="operand">c</e>
        <e type="operand">iter</e>
        <e type="operand">1</e>
        <e type="operator" args="2">*</e>
        <e type="operand" style="unit">kN</e>
        <e type="operator" args="2">*</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
        <e type="operand">6</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="8">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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    <math optimize="2">
      <input>
        <e type="operand">a</e>
        <e type="operand">1</e>
        <e type="operand" style="unit">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="32" left="234" top="1503" width="99" height="24" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">b</e>
        <e type="operand">1000</e>
        <e type="operand" style="unit">kN</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="33" left="18" top="1539" width="191" height="36" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">N.pp</e>
        <e type="operand">N.i</e>
        <e type="function" args="1">Fon</e>
        <e type="operand">a</e>
        <e type="operand">b</e>
        <e type="function" args="3">Sol</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="34" left="234" top="1539" width="216" height="49" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">N.pp</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" args="1">Fon</e>
      </input>
      <result action="numeric">
        <e type="operand">7.3751</e>
        <e type="operand">10</e>
        <e type="operand">17</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">*</e>
        <e type="operand" style="unit">m</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
  </region>
  <region id="35" left="18" top="1584" width="148" height="44" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">N.pp</e>
      </input>
      <contract>
        <e type="operand" style="unit">kN</e>
      </contract>
      <result action="numeric">
        <e type="operand">17.8336</e>
        <e type="operator" args="1">-</e>
        <e type="operand">6</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">sys</e>
      </result>
    </math>
  </region>
  <region id="36" left="36" top="1692" width="553" height="516" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math decimalPlaces="15">
      <description active="true" position="Top" lang="eng">
        <p>Broyden's method - solving nonlinear system of eqiations,Arguments:f(1) - vector function returning vector of size n (f(x)≡0)x0  - initial estimates, vector of size nε - tolerance (small number)maxiter - naximal number of iterations (if exceeded - method not converging)</p>
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      <input>
        <e type="operand">1</e>
        <e type="function" args="1">f</e>
        <e type="operand">x0</e>
        <e type="operand">ε</e>
        <e type="operand">maxiter</e>
        <e type="function" args="4">broyden</e>
        <e type="operand">next</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">iter</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">n</e>
        <e type="operand">x0</e>
        <e type="function" preserve="true" args="1">length</e>
        <e type="operator" args="2">:</e>
        <e type="operand">B</e>
        <e type="operand">n</e>
        <e type="function" preserve="true" args="1">identity</e>
        <e type="operator" args="2">:</e>
        <e type="operand">next</e>
        <e type="operand">h</e>
        <e type="operand">B</e>
        <e type="operand">x0</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="1">-</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">h</e>
        <e type="function" preserve="true" args="1">min</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operand">x0</e>
        <e type="function" preserve="true" args="1">min</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operator" args="2">/</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">&lt;</e>
        <e type="bracket">(</e>
        <e type="operand">h</e>
        <e type="function" preserve="true" args="1">max</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operand">x0</e>
        <e type="function" preserve="true" args="1">min</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">+</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operator" args="2">/</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">&lt;</e>
        <e type="bracket">(</e>
        <e type="operator" args="2">&amp;</e>
        <e type="operand">next</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="operand">x0</e>
        <e type="operand">h</e>
        <e type="operator" args="2">+</e>
        <e type="operator" args="2">:</e>
        <e type="operand">z</e>
        <e type="operand">x</e>
        <e type="function" args="1">f</e>
        <e type="operand">x0</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">B</e>
        <e type="operand">B</e>
        <e type="operand">B</e>
        <e type="operand">z</e>
        <e type="operator" args="2">*</e>
        <e type="operand">h</e>
        <e type="operator" args="2">-</e>
        <e type="bracket">(</e>
        <e type="operand">h</e>
        <e type="function" preserve="true" args="1">transpose</e>
        <e type="operator" args="2">*</e>
        <e type="operand">B</e>
        <e type="operator" args="2">*</e>
        <e type="operand">h</e>
        <e type="function" preserve="true" args="1">transpose</e>
        <e type="operand">B</e>
        <e type="operator" args="2">*</e>
        <e type="operand">z</e>
        <e type="operator" args="2">*</e>
        <e type="bracket">(</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">-</e>
        <e type="function" preserve="true" args="1">eval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">iter</e>
        <e type="operand">iter</e>
        <e type="operand">1</e>
        <e type="operator" args="2">+</e>
        <e type="operator" args="2">:</e>
        <e type="operand">iter</e>
        <e type="operand">maxiter</e>
        <e type="operator" args="2">&gt;</e>
        <e type="operand">next</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">next</e>
        <e type="operand">1</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x0</e>
        <e type="operand">x</e>
        <e type="operator" args="2">:</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">5</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="7">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="function" preserve="true" args="2">while</e>
        <e type="operand">konv</e>
        <e type="operand">iter</e>
        <e type="operand">maxiter</e>
        <e type="operator" args="2">≥</e>
        <e type="operand" style="string">not converging</e>
        <e type="operand">iter</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operator" args="2">:</e>
        <e type="operand">x</e>
        <e type="operand">konv</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">7</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="9">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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    <math optimize="2">
      <input>
        <e type="operand">a</e>
        <e type="operand">1</e>
        <e type="operand" style="unit">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="38" left="171" top="2349" width="99" height="24" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">b</e>
        <e type="operand">1000</e>
        <e type="operand" style="unit">kN</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="39" left="306" top="2349" width="80" height="33" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">ε</e>
        <e type="operand">10</e>
        <e type="operand">20</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="40" left="495" top="2349" width="110" height="24" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">maxiter</e>
        <e type="operand">100</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="41" left="54" top="2421" width="305" height="34" color="#000000" bgColor="#ffffff" fontSize="10">
    <math error="9">
      <input>
        <e type="operand">N.ppp</e>
        <e type="operand">x#</e>
        <e type="function" args="1">Fon</e>
        <e type="operand">b</e>
        <e type="operand">ε</e>
        <e type="operand">maxiter</e>
        <e type="function" args="4">broyden</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="42" left="54" top="2475" width="66" height="32" color="#000000" bgColor="#ffffff" fontSize="10">
    <math error="2">
      <input>
        <e type="operand">N.ppp</e>
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      <result action="numeric">
        <e type="operand">#</e>
      </result>
    </math>
  </region>
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    <math optimize="2">
      <input>
        <e type="operand">1</e>
        <e type="function" args="1">f</e>
        <e type="operand">a</e>
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        <e type="operand">ε</e>
        <e type="function" args="4">bisect</e>
        <e type="operand">b</e>
        <e type="function" args="1">f</e>
        <e type="operand">0</e>
        <e type="operator" args="2">&lt;</e>
        <e type="operand">a</e>
        <e type="function" args="1">f</e>
        <e type="operand">0</e>
        <e type="operator" args="2">&lt;</e>
        <e type="operand">res</e>
        <e type="operand" style="string">no zero in interval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">b1</e>
        <e type="operand">a</e>
        <e type="operator" args="2">:</e>
        <e type="operand">a1</e>
        <e type="operand">b</e>
        <e type="operator" args="2">:</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">line</e>
        <e type="operand">a</e>
        <e type="function" args="1">f</e>
        <e type="operand">0</e>
        <e type="operator" args="2">&gt;</e>
        <e type="operand">res</e>
        <e type="operand" style="string">no zero in interval</e>
        <e type="operator" args="2">:</e>
        <e type="operand">a1</e>
        <e type="operand">a</e>
        <e type="operator" args="2">:</e>
        <e type="operand">b1</e>
        <e type="operand">b</e>
        <e type="operator" args="2">:</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">1</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="3">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">res</e>
        <e type="function" preserve="true" args="1">IsDefined</e>
        <e type="operand">n</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">res</e>
        <e type="operand">b1</e>
        <e type="operand">a1</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">n</e>
        <e type="operand">0</e>
        <e type="operator" args="2">:</e>
        <e type="operand">res</e>
        <e type="function" args="1">f</e>
        <e type="function" preserve="true" args="1">abs</e>
        <e type="operand">ε</e>
        <e type="operator" args="2">&gt;</e>
        <e type="operand">res</e>
        <e type="function" args="1">f</e>
        <e type="operand">a1</e>
        <e type="function" args="1">f</e>
        <e type="operator" args="2">*</e>
        <e type="operand">0</e>
        <e type="operator" args="2">≤</e>
        <e type="operand">b1</e>
        <e type="operand">res</e>
        <e type="operator" args="2">:</e>
        <e type="operand">a1</e>
        <e type="operand">res</e>
        <e type="operator" args="2">:</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">res</e>
        <e type="operand">b1</e>
        <e type="operand">a1</e>
        <e type="operator" args="2">+</e>
        <e type="bracket">(</e>
        <e type="operand">2</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">:</e>
        <e type="operand">n</e>
        <e type="operand">n</e>
        <e type="operand">1</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" preserve="true" args="5">line</e>
        <e type="function" preserve="true" args="2">while</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">line</e>
        <e type="function" preserve="true" args="3">if</e>
        <e type="operand">res</e>
        <e type="operand">n</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
        <e type="operand">3</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="5">line</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
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    <math>
      <input>
        <e type="operand">ε</e>
        <e type="operand">10</e>
        <e type="operand">8</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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    <math optimize="2">
      <input>
        <e type="operand">a</e>
        <e type="operand">1</e>
        <e type="operand" style="unit">N</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="46" left="243" top="3051" width="99" height="24" border="true" color="#000000" bgColor="#ffffff" fontSize="10">
    <math optimize="2">
      <input>
        <e type="operand">b</e>
        <e type="operand">1000</e>
        <e type="operand" style="unit">kN</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
  <region id="47" left="45" top="3105" width="267" height="36" color="#000000" bgColor="#ffffff" fontSize="10">
    <math>
      <input>
        <e type="operand">res</e>
        <e type="operand">x#</e>
        <e type="function" args="1">Fon</e>
        <e type="operand">a</e>
        <e type="operand">b</e>
        <e type="operand">10</e>
        <e type="operand">8</e>
        <e type="operator" args="1">-</e>
        <e type="operator" args="2">^</e>
        <e type="function" args="4">bisect</e>
        <e type="operator" args="2">:</e>
      </input>
    </math>
  </region>
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    <math>
      <input>
        <e type="operand">res</e>
      </input>
      <result action="numeric">
        <e type="operand">5</e>
        <e type="operand">10</e>
        <e type="operand">5</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">*</e>
        <e type="operand" style="unit">kg</e>
        <e type="operand" style="unit">m</e>
        <e type="operator" args="2">*</e>
        <e type="operand" style="unit">s</e>
        <e type="operand">2</e>
        <e type="operator" args="2">^</e>
        <e type="operator" args="2">/</e>
        <e type="operator" args="2">*</e>
        <e type="operator" args="1">-</e>
        <e type="operand">0</e>
        <e type="operand">2</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="4">mat</e>
      </result>
    </math>
  </region>
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    <math>
      <input>
        <e type="operand">res</e>
        <e type="operand">1</e>
        <e type="function" preserve="true" args="2">el</e>
        <e type="function" args="1">Fon</e>
      </input>
      <result action="numeric">
        <e type="operand">0.14</e>
        <e type="operand" style="unit">m</e>
        <e type="operator" args="2">*</e>
      </result>
    </math>
  </region>
</regions>