HP 39gII, Руководство пользователя

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Using mathematical functions 161
(
x+y*i
), 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*i
))
Example:
ARG(3+3*i)
returns
45
(Degrees mode)
CONJ
Complex conjugate. Conjugation is the negation (sign
reversal) of the imaginary part of a complex number.
CONJ
((
x+y*i
))
Example:
CONJ(3+4*i)
returns
(3-4*i)
IM
Imaginary part, y, of a complex number, (
x+y*i
).
IM
((
x+y*i)
)
Example:
IM(3+4*i)
returns
4
RE
Real part
x
, of a complex number, (
x+y*i
).
RE
((x+y*i))
Example:
RE(3+4*i)
returns
3
Constants
The constants available from the Math Functions menu
are mathematical constants. These are described in this
section. The HP 39gII has two other menus of constants:
program constants and physical constants. The physical
constants are described further on in this chapter, while
the program constants are described in the programming
chapter.
e
Natural logarithm base. Internally represented as
2.71828182846.
e