Laplace Circuit Analysis

Hi,

I'm trying to make a template that can be used for circuit analysing using Laplace transform.

Everything works except that the input signal is not repetitive for a certain number of periods (or continous).

I tried to make an incremented version of the input signal function but it doesn't work. Tried with a "for loop" and the same result. Maybe I don't use it well because if I give a certain time period for t the signal goes forever. I found how to make a periodic function with "mod" or "floor" functions but if I apply Laplace I don't have a good result.

The input signal is a PWL signal and a LC circuit, but you'll see all the details in the attached document. So my question is how to make the input signal repetitive for a certain number of periods.

I use Mathcad Prime 4 or Mathcad 15.

Best regards.