© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X
Ù
S: A Guide for Teachers
81
Keys
1.
@
calculates the tangent.
2.
%
\
calculates the inverse tangent.
3.
?
calculates the cosine.
4.
%
[
calculates the inverse cosine.
5.
>
calculates the sine.
6.
%
Z
calculates the inverse sine.
Notes
•
The examples on the transparency masters
assume all default settings.
•
Before starting a trigonometric
calculation, be sure to select the
appropriate angle mode setting (degree,
radian, or gradient—See Chapter 16,
Angle Settings and Conversions). The
calculator interprets values according to
the current angle-unit mode setting.
•
E
ends a trig function.
1
2
3
4
5
6
Trigonometry
13
Summary of Contents for -30XIIS - Handheld Scienfic Calculator
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