CASTI-89 TITANIUM · CALC89
tanh⁻¹(
Returns the inverse hyperbolic tangent of a value.
Syntax
tanh⁻¹(expr)
- Group
- Trigonometry
- Arguments
- Takes one value or expression.
- Availability
- Included
- Menu path
- MATH ▸ Hyperbolic ▸ tanh⁻¹(
Example
| Input | Result |
|---|---|
| tanh⁻¹(0.5) | 0.549306144334 |
Typing tanh⁻¹(0.5) on the home screen and pressing ENTER returns 0.549306144334.
Keystrokes on the TI-89 Titanium
2NDMATH▼×12ENTER6
The same key sequence inserts tanh⁻¹( in Calc89, and the AI tutor shows it step by step on the on-screen keypad.
Related commands
- 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.
- cot(Returns the cotangent of an angle, interpreted in the current angle mode.
- coth(Returns the hyperbolic cotangent of a value.
- coth⁻¹(Returns the inverse hyperbolic cotangent of a value.