script prova gpuArray

X = [-15:15 0 -15:15 0 -15:15];
gpuX = gpuArray(X);
gpuE = expm(diag(gpuX,-1)) * expm(diag(gpuX,1));
gpuM = mod(abs(gpuE),2);
gpuF = gpuM + fliplr(gpuM);
imagesc(gpuF);
colormap(flip(gray));

Link: https://it.mathworks.com/help/parallel-computing/gpuarray.html