linear equation with summation

The equation is given as . D and A are given through matrices. I need to calculate q.

I use operator / to solve linear equation, so that q=A/D. The question is, how to account for summation in this case? q=0,before cycle and then q=q+q;?

[madhan ravi]

Paste what you have tried so far?

[Ben Andersson]

n=10;
a=0.1:0.1:1;
A=[a;a;a;a;a;a;a;a;a;a;];
d=0.5:0.5:5;
D=[d;d;d;d;d;d;d;d;d;d;];
q=zeros(n,n);

for m=1:n
    for t=1:n
        for j=1:n
            q(m,j)=A(m,t)/D(j,t);
            q(m,j)=q(m,j)+q(m,j);
            
        end
    end
end

Answer 1

[Matt J]

q=A/D should already account for the summation. Your equation can be written just by replacing the summation with simple matrix multiplication. In this form, the equation is just q*D=A and you have rightly used q=A/D to solve it.

[Ben Andersson]

thanks!