Function reference · Trigonometry
acosh
Computes the principal inverse hyperbolic cosine.
acosh(1) is zero. Inputs below the real domain can produce complex principal values, while unsupported symbolic cases remain as acosh(x).
Examples
These examples use Nerdamer Notation.
Evaluate the real-domain endpoint.
acosh(1) // → 0
Keep a symbolic inverse hyperbolic cosine.
acosh(x)Interfaces
The same operation is available through the interfaces below.
Nerdamer Notation
Use this form inside input passed to nerdamer(...).
acosh(arg1)nerdamer.acosh
Call the operation through the default nerdamer import.
nerdamer.acosh(x: ExpressionInput): ExpressionParameters
| Name | Type | Description |
|---|---|---|
x | ExpressionInput | The input expression (domain `[1, ∞)` for real results). |
Returns
Expression — The inverse hyperbolic cosine of `x`.