For my experimental methods class (basically an intro to electronics) in university we had to simulate a circuit, which was nothing out of the ordinary, it just produces different sine waves of 2 volts peak to peak. However, what was interesting to me was the fact that, when reading the measurements that the software produced for the Vrms, it seemed to depend on the frequency, contrary to the theory.
Of course, I expected the measurement to be different to the theory, given that simulating it with a computer probably introduced limitations. What I didn't expect was for it to behave so weirdly, having these peaks where it would rapidly decrease and increase again, and ultimately converging to around 702.42 mV, which doesn't make any intuitive sense to me.
I thought that the measured voltage would just stray arbitrarily far from the ideal one, but was surprised when that wasn't the case.
So, why does this happen? It might be a stupid question but when I saw this I got curious and couldn't come up with an explanation by myself (I'm not too far into my studies, so that might be a reason).
Thanks in advance!