# Homework Help: Help with convolution

1. Oct 4, 2014

### noname1

convolve the following

h[n] = δ[n-a] + δ[n-b]
x[n] = δ[n-c] + δ[n-d]

i understand that the convolution is y[n] = h[n]*x[n] and i know how to do it with number instead of letters however not quite sure how it would work with the letters, its not possible to view when a & b will overlap c & d.

Any help would be appreciated

2. Oct 5, 2014

### Ray Vickson

What is your definition of $\delta[k]$? When you say you understand $y[n] = h[n]*x[n]$, what,exactly, do you understand? In other words, what would be the actual formula for $y[n]$?