Vectorize nested for loops

Hello everyone.

I'd like to vectorize this code:

        for i = 1:N-2
            for j = 1:N
                Jacobian(i,j) = D2Mat(i+1,j)+(2/XCheb(i+1))*...
                    D1Mat(i+1,j)+(xi^2)*n*Y(i+1)^(n-1)*D0Mat(i+1,j);
            end
        end

where D2Mat is (NxN), XCheb is (N,1), D1Mat is (NxN), D0Mat is (NxN), Y is (N,1) and xi, n are real values.

Thanks

Answer 1

[David Hill]

Jacobian=D2Mat(2:end-1,:)+(2./XCheb(2:end-1)).*D1Mat(2:end-1,:)+((xi^2)*n*Y(2:end-1).^(n-1)).*D0Mat(2:end-1,:);

[Jesus Octavio]

Thank you !!!

It was so easy... 🤦‍♂️