Homework #4

[Hiroko Shiraiwa]

Hi Julius,

For me, the definition of x_k[n] seems really funny. You said, 
x_k[n] = e^j \omega n is just in the special case, T = 1.

But if you define it as x_k[n] = e^j \omega nT, the dimension
of left side and right side doesn't match. The left side is in 
"sample space" though the right side is in t-domain, which is 
converted from sample space using fs. I think that the definition
would be one of following;

x_k[n] = e^j \omega n  
OR 
x_k(t) = e^j \omega nT  (where t = nT).

Looking forward to your reply!
Thanks,
Hiroko

-- 
Hiroko Shiraiwa <shiraiwa@stanford.edu>