Texas Instruments TI-84 PLUS - Graphing Calculator User Manual

Chapter 2: Math, Angle, and Test Operations 55
imag(
imag( (imaginary part) returns the imaginary (nonreal) part of a complex number or list of complex
numbers.
imag(a+bi) returns b.
imag(re^(qi)) returns r†sin(q).
MathPrint™ Classic
angle(
angle( returns the polar angle of a complex number or list of complex numbers, calculated as tan
L1
(b/a), where b is the imaginary part and a is the real part. The calculation is adjusted by +p in the
second quadrant or Np in the third quadrant.
angle(a+bi) returns tan
L1
(b/a).
angle(re^(qi)) returns q, where Lp<q<p.
MathPrint™ Classic
abs(
abs( (absolute value) returns the magnitude (modulus),
, of a complex number or list
of complex numbers.
You can also access abs( from the
FUNC shortcut menu (t _ 1).

Texas Instruments TI-84 PLUS - Graphing Calculator Specifications

General

Type	Graphing Calculator
Display Type	LCD
Screen Resolution	96 x 64 pixels
Processor	Zilog Z80
Memory	24 KB RAM, 480 KB Flash ROM
Power Source	4 AAA batteries (with backup lithium battery)
Connectivity	I/O port
Weight	7.4 oz (210 g)
Software	TI-OS (Texas Instruments Operating System)