HP 39g Graphing Calculator Guia do Utilizador descarregar pdf (Página 144)

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10-8 Using mathematical functions

Complex number functions

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.

ARG 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)

CONJ 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)

IM Imaginary part, y, of a complex number, (x,y).

IM ((x,y))

Example

IM((3,4)) returns 4

RE Real part x, of a complex number, (x,y).

RE((x,y))

Example

RE((3,4)) returns 3

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