User manual

ManualsBrandsTEXAS INSTRUMENTS ManualsCalculatorsTI 30 X II S school calculator

© 1999 T

EXAS

I

NSTRUMENTS

I

NCORPORATED

TI-30X ÙS: 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