CASIO fx-CG50

[lrdheat]

I'm wondering if Eddie tried something like sin 1+2i instead of sin (1+2i). The first case would be interpreted as (sin 1) + 2i. This would produce an answer that looks like complex numbers are supported, but is really sin 1 which is ~.84 plus i. Sin (1+2i) produces a non real error. The Prime produces in home, ~3.17+~1.96i.