Complex Number Functions - HP 39G User Manual

Complex number functions

ARG
CONJ
IM
RE
10-8
These functions are for complex numbers only. You can also
use complex numbers with all trigonometric and hyperbolic
functions, and with some real-number and keyboard
functions. Enter complex numbers in the form (x,y), where x
is the real part and y is the imaginary part.
Argument. Finds the angle defined by a complex number.
Inputs and outputs use the current angle format set in Modes.
ARG((x,y))
Example
ARG((3,3)) returns 45 (Degrees mode)
Complex conjugate. Conjugation is the negation (sign
reversal) of the imaginary part of a complex number.
CONJ((x,y))
Example
CONJ((3,4)) returns (3,-4)
Imaginary part, y, of a complex number, (x,y).
IM ((x,y))
Example
IM((3,4)) returns 4
Real part x, of a complex number, (x,y).
RE((x,y))
Example
RE((3,4)) returns 3
Using mathematical functions