Understanding the Heaviside Function: Solving the Equation for a Graph

[morry]

hey guys, I am having a bit of trouble finding the equation for the following graph.

I know it should look something like: u(t)-2u(t-2), but I don't really understand it.

Can someone point me in the right direction?

 

[benorin]

We can't view the graph yet as it is listed as an "Attachment Pending Approval". Describe it, e.g.

u(t)-2u(t-2), is 0 for t<0, 1 for 0<=t<2, and -1 for t>=2.

Note that I have assumed that u(t) is 0 for t<0 and 1 for t>=0.

 

[morry]

Oh ok. Sorry about that.

Well: g(t)= 1 for 0<t<2
and g(t)= -1 for t>2

And g(t)=0 for t<0

edit: I just read what you wrote. It sounds like what I've got. Looks like I did kinda understand what I was doing afterall. Cheers.