Subsamples a clocked expressions as part of the synchronous language elements.
subSample(u, factor)
The clock of y = subSample(u,factor) is factor-times slower than the clock of u. At every factor ticks of the clock of u, the operator returns the value of u. The first activation of the clock of y coincides with the first activation of the clock of u. If argument factor is not provided or is equal to zero, it is inferred.