How to create a matrix of Matlab Functions out of a symbolic matrix?

Hello. I've got a huge 6x6 symbolic matrix M that can't be just pasted/inlined on a function to substitute values because of its size. I've had some bad experiences with the function subs(), being extremely slow. The recommended alternative is to convert the symbolic expression into a Matlab Function through matlabFunction() and then substitute from it. Given that, I tried:

M = % Huge sym 6x6 matrix

for i = 1:6
    for j = 1:6
        fM{i,j} = matlabFunction(M(i,j));
    end
end

Which throws:

Unable to perform assignment because brace indexing is not supported for variables of this type.

I tried many variants but none of them worked. I feel like I'm very far from the solution, if there's any.

Thank you,

Jose

[madhan ravi]

Try adding:

fM = cell(6); % before the loop

Note: fM line is missing ")"

[comment moved to answer]

[Walter Roberson]

I agree, most likely fM already existed as a non-cell.

[Jose Antonio Aliaga]

That's it Madhan, it works beautifully. Thank you.

Answer 1

[madhan ravi]

https://in.mathworks.com/matlabcentral/answers/466543-how-to-create-a-matrix-of-matlab-functions-out-of-a-symbolic-matrix#comment_713725