Entering And Using Complex Numbers; Complex-Number Modes - Texas Instruments TI-83 Manual Book

Entering and Using Complex Numbers

Complex-Number Modes

The TI-83 Plus
form. To select a complex-number mode, press z, and then select
either of the two modes.
(rectangular-complex mode)
a+b i
(polar-complex mode)
re^q i
On the TI-83 Plus, complex numbers can be stored to variables. Also,
complex numbers are valid list elements.
In mode, complex-number results return an error, unless you
Real
entered a complex number as input. For example, in
returns an error; in
TI-83 Plus Math, Angle, and Test Operations
displays complex numbers in rectangular form and polar
mode
a+b i
returns an answer.
ln(L1)
mode
Real ln(L1)
84