87297be8-ff2c-46fe-af61-ff601c03cff7 49 6 5 auto

&[DATE] &[TIME] - &[FILENAME]

x y f x 4^y 4^+ 0.4 7 x * sin * + 0.3 4 π * y * sin * + 1 - :

f 1 1 sys

x y f 11 x + (3^+ 3 y * 1 x + (* - y 3^+ abs ln 0 + :

level 0.5 :

x y f1 11 x + (3^+ 3 y * 1 x + (* - y 3^+ abs ln level + :

x y f3 11 x + (3^+ 3 y * 1 x + (* - y 3^+ abs ln 0.125 - :

f f1 f3 3 1 sys

This function appeared in Mathematica "StackExchange" forum... unanswered ! Glorious Maxima X_Y plot is genious, but stays blind for "Human Eye". If you extend the 'X' axis, Maxima loses the plot, probably due to the granularity of the 32 bits.

--------------- Tip ----------------- Often, it's not practical to turn Off calculations on long work sheet and if you want to delete some item that were or are active, it forces the all work sheet recalculate,,, nasty minutes ! To delete such item(s), click on the right end of the argument, press backspace until everyting is gone . Work sheet does not recalculate.

f 1 1 sys

Human Eye fake parametric equation

α 0.842 :

β 2 :

x y f 1 x 2^y α - (y α + (* + (2^2 x * y α - (* (2^+ / :

Y 0101 - 22 mat :

y F x y f β ≡ x solve maple :

x datum 0 :

Human eye ... β level plane contour

x F 1 el x F 2 el x datum Y 4 1 sys

Here, Smath in sympathic with its Maple companion. Mathcad 11 and its Maple takes a "huge while" to plot, plot 4 solutions. Smath spits Maple two solutions in NO time. This function is only positive in the 3D domain, i.e: β > 0 X_Y does NOT like something in there ?

x F 1 el Re x F 2 el Re x datum Y 4 1 sys

x datum 0.5 2^:

x f x sin :

y Fnct_1 y F 1 el : 421421 - 2000 y * + (* 2010 sqrt 500125125116 y 4^* + (* 5052 y 3^* - (* 531723 y 2^* + (* 74618461 y * - sqrt * 37500 y 2^* - (* + sqrt 500 /

y Fnct_2 y F 2 el : 421421 - 2000 y * + (* 2010 sqrt 500125125116 y 4^* + (* 5052 y 3^* - (* 531723 y 2^* + (* 74618461 y * - sqrt * 37500 y 2^* - (* + sqrt 500 / -

0.125 20 x * sin * x datum y Fnct_1 Re y Fnct_2 Re 0.25 x ln * Re 5 1 sys 0.25 x ln * Re

Memo: Remember that all those are by default 100 values [native] So, if you want to see 0.125*sin(100*x), you will start plotting a "FlintStones" saw tooth ! that you will have to manage later.

0.125 20 x * sin *

Granular plot

x ln

1021 -^ln 48.3543 -

0.125 20 x * sin * 0 2 1 sys

x datum 0 :

π 20 * 62.8319

0.125 20 x * sin * x datum 2 1 sys 0.125 20 x * sin * 0.125 20 x * sin * 0 2 1 sys

π 20 * 62.8319

x datum 0 :

0.125 20 x * sin * x datum 2 1 sys

X 5 :

m 1 :

x f x ln :

XY X m - X f X X f X X f m + X X f X X f 1 - X X f X m + X f 72 mat :

Y 0302 - 22 mat :

U 1012 -^15 0.01 range :

i 1 U rows range p i el U i el f : for

xy 10404 X X f 32 mat :

Plot U p augment :

Plot x datum Y XY xy 5 1 sys

Forget me not

X X f 12 mat 5 1.61 12 mat

Notes n n ln + 20 blue 15 mat X_Y plot takes 2 cols does NOT take conditional 31 mat ≡

If you attempt "Legend", too many objects in the plot ... Legend will scrap the plot.

X X f 12 mat 5 1.6094 12 mat