Texas Instruments TI-34 II Teachers Guide - Page 113

Angle Settings and Conversions - radian mode

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Angle Settings and Conversions 16 Keys These numbered paragraphs provide explanations for the corresponding numbered keys on the illustration below. 1. % I displays a menu that lets you change the angle mode setting to DEG and RAD without affecting the value in the display. DEG Sets Degree mode. RAD Sets Radian mode. The default setting is DEG. 1 2 2. = displays a menu that lets you specify the unit of an angle. º Specifies degrees. r Specifies radians. 4DMS Specifies degrees (Ä), minutes (Å), and seconds (Æ). It also lets you convert an angle from decimal degrees to DMS notation. Notes • The examples on the transparency masters assume all default settings. • Angles with a trig function ignore the angle mode setting and display results in the original unit. Otherwise, angles (without a trig function) are converted and displayed according to the angle mode setting. • You enter decimal-degree angles the same as you would any other number. • For decimal/DMS conversions, the calculator interprets all values as degrees, regardless of the angle-unit setting. • DMS angles are entered as Ä (degrees), Å (minutes), and Æ (seconds). © 1999 TEXAS INSTRUMENTS INCORPORATED TI-34 Û: A Guide for Teachers 107

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© 1999
T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI
-
34
Û
: A Guide for Teachers
107
Angle Settings and Conversions
16
Keys
These numbered paragraphs provide
explanations for the corresponding numbered
keys on the illustration below.
1.
%
I
displays a menu that lets you
change the angle mode setting to
DEG
and RAD without affecting the value in
the display.
DEG
Sets Degree mode.
RAD
Sets Radian mode.
The default setting is DEG.
2.
=
displays a menu that lets you
specify the unit of an angle.
º
Specifies degrees.
r
Specifies radians.
4
DMS
Specifies degrees (
Ä
), minutes
(
Å
), and seconds (
Æ
). It also lets
you convert an angle from
decimal degrees to DMS
notation.
Notes
•
The examples on the transparency
masters assume all default settings.
•
Angles with a trig function ignore the
angle mode setting and display results in
the original unit. Otherwise, angles
(without a trig function) are converted
and displayed according to the angle
mode setting.
•
You enter decimal-degree angles the
same as you would any other number.
•
For decimal/DMS conversions, the
calculator interprets all values as
degrees, regardless of the angle-unit
setting.
•
DMS angles are entered as
Ä
(degrees),
Å
(minutes), and
Æ
(seconds).
1
2