MATLAB: How to speed up this loops

for loopMATLABparallel computingspeedvectorization

Hi,
Is there a way to speed up this?
maxN = 120;
x = -30:0.1:30;
xElements = numel(x);
u_mn = zeros(xElements, xElements);
for m = -maxN:2:maxN
    for i = 1 : xElements
        for j = 1 : xElements
            u_mn(i, j) = sqrt((n+1)/pi) * besselj(m+1, 2*sqrt(x(i)^2 + x(j)^2)) / sqrt(x(i)^2 + x(j)^2)^(m+1) * (x(i) + 1i*x(j))^m;
        end
    end
end
Best regards, Alex

Best Answer

You can create a mex function of your firstTestFunct by
xx = 1;
codegen firstTestFunct -args {xx, xx, xx, xx}
You need to do it only once. It will generate a mex file. To call the generated mex file, you just need to replace firstTestFunct with firstTestFunct_mex .
Related Question