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TI-83 Plus Math, Angle, and Test Operations 84
Entering and Using Complex Numbers
Complex-Number Modes
The TI-83 Plus displays complex numbers in rectangular form and polar
form. To select a complex-number mode, press
z
, and then select
either of the two modes.
•
a+b
i
(rectangular-complex mode)
•
re^
q
i
(polar-complex mode)
On the TI-83 Plus, complex numbers can be stored to variables. Also,
complex numbers are valid list elements.
In
Real
mode, complex-number results return an error, unless you
entered a complex number as input. For example, in
Real
mode
ln(
L
1)
returns an error; in
a+b
i
mode
ln(
L
1)
returns an answer.