atanh : atanh « math.h « C Tutorial

19.8.1.atanh

Item	Value
Header file	math.h
Declaration	float atanhf(float arg); double atanh(double arg); long double atanhl(long double arg);
Return	returns the arc hyperbolic tangent of arg.
Parameter	This argument must be in the range -1 to 1.

#include <math.h>

  #include <stdio.h>



  int main(void)

  {

    printf("%f.\n",  atanh(12));

    return 0;

  }

-1.#IND00.

19.8.atanh
	19.8.1.	atanh

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