# MATLAB: The same code works for the matrix of size 5 but does not work for the matrix of size 100

large matrixsparse matrix

Hi,
I have a sparse matrix L of zeros and ones and I want to change the non-zero entries to some fractions. This is my code:
    beta = 0.5    n = size(L,1); %set n = dim(L)    rsv=ones(1,n)*L; %row sum vector of L     H =L;    for i=1:n       for j=1:n          if H(i,j) == 1            H(i,j)=1/((1-beta)*rsv(i)+ beta*rsv(j));          end        end    end
I found this code works for the matrix of size 5 but does not work for the matrix of size 100 (all entries stay unchanged).
Do you know why and how to change the code?
Many thanks,
Weijian

1/((1-beta)*rsv(i)+ beta*rsv(j))