epoch Prime

[pier4r]

@Dieter. Don't you have the prime? Not even the app?

Good info about the optional parameters, although I suspected it. The workaround with a list in input is not bad.

For example:
{ "par1", val1, "par2", val2, ..... , "par_n", val_n}

if a "parX" is missing, one could assign a default value. It is a bit more clumsy to construct for the caller, but likely is doable.

Another way could be also with program wide values. (not necessarily globals)
But those may be persistent between calls so, a bit more tricky to handle.