?: Exstracting values from data like "(123,456)" ?

[MvGulik]

Looked at Nip2 doc(pdf) & toolkit code. But could not find something that worked or made sense to me.

"(1,2) + (3,4)" => "(4,6)" works as expected. But how do you pull that 4 or 6 as single value for further processing ?

Nip4 note: "(1,2) + (3,4)" returns "4 + 6j" ... Not sure if that's intentional (imaginary number related ?)

[jcupitt]

Yes, (1, 2) is a complex number, so eg. (1, 2) * (3, 4) is not (3, 8).

You can use the re (get real part) and im (get imaginary part) projection functions on complex numbers, eg.:

re (1, 2) == 1
im (1, 2) == 2

The 4 + 6j was supposed to make it more obvious that it's a complex number, but maybe it's confusing. It should probably just display as (4, 6).