# Math Help - Discrete convolution

1. ## Discrete convolution

2. Originally Posted by retroscience
as before, i am revising for exams and would appreciate someone to show me how to do this by a worked example;

qstn : a(t) = { 1: 0 lessthanorequalto t lessthan 1
{ 0 : otherwisw

b(t) = {1 : 3 lessthanorequalto t lessthan 5
{0 : otherwise

a(t) and b(t) are two piecewise continous functions

find the convolution c(t) , c(t) = a(t) * b(t)

thanking you!
What is discrete about the convolution you are asking about? (the discrete convolution is for functions on $\mathbb{Z}$ for which your statement about continuity is peculiar)

3. not quite sure...

4. Originally Posted by retroscience
Hello,

the answer is i have absolutely no idea.
What definition of convolution are you using?

(You should know that you are going to get a triangular function out of this with support (3,6) )

CB