A preliminary Complex number node menu, work in progress.
Contains MultiComplex, short for multiply two complex numbers, which are each in the form of a two-element numarray.

I think it may be easier, in using nodes and macros, to deal with a complex number as a 2-element numarray, rather than a two element pointarray.
Later convert the two-element numarray into a point, which may take a macro or another node...

- Brian