User Manual

19
© 2006 TEXAS INSTRUMENTS INCORPORATED TI-30XS MultiView: A Guide For Teachers 123
Trigonometry
Keys
1. > calculates the sine of an angle.
2. % Z calculates the inverse sine.
3. ? calculates the cosine of an angle.
4. % [ calculates the inverse cosine.
5. @ calculates the tangent of an angle.
6. % \ calculates the inverse tangent.
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 (DEG, RAD, or GRAD—See Chapter
17, Angle settings and conversions). The
calculator interprets values according to the
current angle-unit mode setting.
• In MathPrint™ mode and the corresponding
mode setting of DEG or RAD, evaluating
trigonometric functions at multiples of 15
degree or pi/12 increments yields exact
radical output in many cases.
• E closes the argument of a trigonometric
function.
4
5
6
3
1
2