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