To change number type (real to complex), follow these steps:

1. Select Mode Settings icon or press the j key.
2. Select between real and complex settings (REAL, a+bi and re^(θi) ).

REAL a+bi re^(θi)

REAL mode does not display complex results unless complex numbers are entered as input.

a+bi (rectangular complex mode) displays complex numbers in the form a+bi

re^(θi) (polar complex mode) displays complex numbers in the form re^(θi)