C atanh() Function

C atanh() Function

The atanh() function returns the hyperbolic arc-tangent of the given number.

This function is defined in <math.h> header file.

Example

C Compiler
#include <stdio.h> #include <math.h> int main() { printf("%lf", atanh(0.5)); return 0; }

Syntax

atanh(data_type x)

Parameter Values

ValueTypeExplanation
xRequiredSpecifies a number.

Return Values

ValueExplanation
NumberReturns the hyperbolic arc-tangent of x.
InfinityIf the given value is 1.
-InfinityIf the given value is -1.
Garbage valueIf the given value is greater than 1, or less than -1.

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