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HP HP-28S User Manual

HP HP-28S
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5
Real-Number Functions
This
chapter
introduces
the
TRIG, LOGS,
and
REAL
menus.
The
TRIG
menu
contains trigonometric
functions
and
commands
dealing
with
angular
measurement.
The
LOGS
menu
contains
logarithmic, ex-
ponential,
and
hyperbolic
functions.
The
REAL
menu
contains
additional
commands
for real
numbers.
All
commands
in
these
menus
are described briefly in
appendix
D,
"Menu
Map:
For
complete
descriptions, refer to
"TRIG:
"LOGS,"
or
"REAL" in
the
Reference
Manual.
Trigonometric Functions
This section
shows
how
to select
the
current
angle
mode,
calculate
with
7r,
and
convert
angular
measure.
Selecting
Angle
Mode
The
calculator
can
interpret
angular
arguments
and
results as degrees
(1/360
of a circle)
or
as
radians
(l/27r
of
a circle).
The
default
choice is
Degrees angle
mode.
For
the
examples in this section, switch to Radi-
ans
angle
mode.
Clear
the
stack
and
select
the
MODE
menu
.
• 1 CLEAR 1 .1 MODE I 1
3
:
1
~1DlIII"'EaGElID.i1llll
5:
Real-Number
Functions
73

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HP HP-28S Specifications

General IconGeneral
BrandHP
ModelHP-28S
CategoryCalculator
LanguageEnglish

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