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Module: Prelude
Function: acosh
Type: Floating a => a -> a
Class: Floating
Description: inverse hyperbolic cosine
Related: acos, asin, asinh, atan, atanh, cos, cosh, sin, sinh, tan, tanh
Keywords: cosine hyperbolic inverse, trigonometry
MATHWORLD Inverse Hyperbolic Cosine

Example 1

Input: acosh 1

Output: 0.0