This is just fur fun tool
.1) Set an amplitude as "A signal" and a period (in number of ticks, so 60 is equal to 1 sec) as "T signal" into constant combinator
2) "R signal" must be set into value 1 when you manipulate with constant combinator
3) Set "R singal" to value 0 (just release it by right click) to start simulation
4) Observe "X signal" at the pole
Note: Higher amplitudes has more precision. I recommend to set amplitude into most possible value (2G). There is a sharp condition A > T and T > 10 (or some similar value). Value of T/A term should be proportional to error in period length. All green network is used for some consant calculations and red network is used for simulation.
Note2: There is also a "U signal" in a bottom red network. Its a signal shifted by T/4. There is an equality U^2 + X^2 = const during all simulation (not perfectly equal due to some error, however the value do not fluctuate over period. (The error is coused by fact that U is calculated after X and X after U etc. Equality Uold*Unew + X^2 = const should be satisfied almost perfectly)
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