Integer array to binary array

Question

I have an integer array:

a=[3,4,5,6,7];

I want to convert it to a binary array with four bits each. For the above integer array I would lik

Answer 1

A late answer I know, but MATLAB has a function to do this directly de2bi

out = de2bi([3,4,5,6,7], 4, 'left-msb');