MATLAB: How can i slice the symbolic function converted with matlabfunction

Question

hi friends

i have a symbolic function that i want to slice it. i converted it with "matlabfunction". now i want to create slice with it but it errors

my code is too long and here there is a code like my code. then i should use sym functions.

the code like my 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

———————————————————————-

help me if you can

thanks a lot

Answer 1

You need to evaluate the function s() at the points on the grid:

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