C acosh() Function

C acosh() Function

The acosh() function returns the hyperbolic arc-cosine of the given number.

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


C Compiler
#include <stdio.h> #include <math.h> int main() { printf("%lf", acosh(2)); return 0; }


acosh(data_type x)

Parameter Values

xRequiredSpecifies a number.

Return Value

NumberReturns the hyperbolic arc-cosine of x.
NaNIf the given value is less than 1 or empty.

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