how can i use slice for symbolic functions?

hi friends

as you know, for symbolic functions, we can not use formulas like plot, mesh, surf , ... and then we should use formulas like ezplot, ezmesh, ezsurf , ... but about the formula " slice " (for symbolic functions), what formula we sholud use? ezslice?!! (it doesn't exist)

Answer 1

[Mischa Kim]

Moein, most likely you can use matlabFunction to convert the symbolic functions and then use function such as slice.

[Moein]

Hi Mischa

thanks a lot for your answer. i tried your answer but it errors i know my mistake: my code to draw slice, is incorrect let's solve it by an axample

for an example easier than my code, but like that, assume that i want to create slices for r(x,y,z) and r is symbolic function i use this code:

syms x y z;

r = x^2 + y^2 + z^2;

s = matlabFunction(r);

[x,y,z] = meshgrid(-2:.2:2,-2:.25:2,-2:.16:2);

xslice = [-1.2,.8,2]; yslice = 2; zslice = [-2,0];

slice(x,y,z,s,xslice,yslice,zslice)

colormap hsv

but it errors:

??? Error using ==> slice at 85 V must be a 3-D array.

what should i do? help me if you can

thanks a lot

[Mischa Kim]

If your function is readily available (as is the case above) you do not need to use the symbolic approach at all. See the answer to your duplicate question.