how to find weighted matrix of a binary matrix of same size in image processing

I have a matrix A like this;

A=[1 2 3 4 5;4 5 6 7 1;3 4 5 9 1; 7 8 9 2 4;1 5 9 5 2];

P is a binary matrix of same size of A; P =

     0     1     0     1     0
     1     0     0     1     0
     0     1     0     0     0
     1     1     0     1     1 
     0     0     0     0     1

I want to replace all 1 of P with the value of A at same index position without using for loop. How can I overcome this problem. Please help me.

Answer 1

[Andrei Bobrov]

Pnew = P.*A;

[Priyanka Roy]

Thanks :)