Texas Instruments TI-83 PLUS - Manual (Page 89)

TI-83 Plus Math, Angle, and Test Operations 86
Interpreting Complex Results
Complex numbers in results, including list elements, are displayed in
either rectangular or polar form, as specified by the mode setting or by a
display conversion instruction. In the example below, polar-complex
(
re^ q i) and Radian modes are set.
Rectangular-Complex Mode
Rectangular-complex mode recognizes and displays a complex number in
the form
a+b i , where
a
is the real component, b is the imaginary
component, and i is a constant equal to
-1
.
To enter a complex number in rectangular form, enter the value of a ( real
component ), press à or ¹ , enter the value of b ( imaginary component ), and
press y V (constant).