CASTI-89 TITANIUM · CALC89
sin(
Returns the sine of an angle, interpreted in the current angle mode. For standard angles such as π/3 the result is exact.
Syntax
sin(expr)
- Group
- Trigonometry
- Arguments
- Takes one angle or expression.
- Availability
- Included
Example
| Input | Result |
|---|---|
| sin(π/6) | 1/2 |
Typing sin(π/6) on the home screen and pressing ENTER returns 1/2.
Keystrokes on the TI-89 Titanium
2NDSIN
The same key sequence inserts sin( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- sinh(Returns the hyperbolic sine of a value.
- sinh⁻¹(Returns the inverse hyperbolic sine of a value.
- sin⁻¹(Returns the angle whose sine is the given value, in the current angle mode.
- tan(Returns the tangent of an angle, interpreted in the current angle mode.
- tanh(Returns the hyperbolic tangent of a value.
- tanh⁻¹(Returns the inverse hyperbolic tangent of a value.
- tan⁻¹(Returns the angle whose tangent is the given value, in the current angle mode.
- cos(Returns the cosine of an angle, interpreted in the current angle mode.