OK. I understand almost everything I need to know in order to do a convolution problem except how to set up what needs to be integrated. The way my professor does it is: 1) flip the impuse 2) move h(t) over x(t) - we usually do this in 5 different regions 3) for each region the bounds have to be chosen and this I can do but how do I figure out what needs to be integrated? for this problem you have 0<t<(t-1) and the limits of integration are from 0 to t but what needs to be integrated. I don't know if I'm getting caught up on the math or what but I do know that I'm completly lost with this. If someone could explain it to me in detail I would greatly appreciate it. I have a test tomorrow and don't want to fail it.