Part A
Part B
The signal I used to transform into a periodic function was $ y=e^x $.
I did this in MATLAB using the following code:
t = [.01:.01:5]; func = exp(t); y = []; for lcv=1:4 y = [y,func]; end t = [.01:.01:20]; plot(t,y)
What this does is repeats the function with a period of 5, and creates 4 full periods.