What Are the Best Resources to Learn Both Discrete and Continuous Convolution?

[end3r7]

I was just wondering if anybody could point me towards a good convolution tutorial, both discrete and continuous, with examples on both applied and pure mathematics (preferably, not geared towards electrical engineering).
I think I have a decent grasp on it, but sometimes things just go blank, you know? I just want to make sure I understand it.

 

[Ian_Brooks]

https://www.physicsforums.com/showthread.php?t=174635

here you go - best one I've come across so far