replace nonzero element of matrix with vector

Hello I have matrix A:

    A=[2 3 0 0;6 0 2 4;1 2 0 7]

I want to replace nonzero element of this matrix with matrix B respectively. matrix B is:

    B=[70;11;111;8;7;22;15;64]

Thank you.

[fatema saba]

Hi I found it. and write it for others.

    fn=find(A~=0)
    A(fn)=B

[Stephen23]

@fatema saba: you do not need to use find, it just makes the code slower and more complicated without any benefit. It is better to use logical indexing, as per Walter Roberson's answer.

Answer 1

[Walter Roberson]

A(logical(A)) = B;

or if you prefer

A(A ~= 0) = B;