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glibc  2.9
w_acos.c File Reference
#include <math.h>
#include "math_private.h"
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double __acos (double x)

Function Documentation

double __acos ( double  x)

Definition at line 28 of file w_acos.c.

#ifdef _IEEE_LIBM
       return __ieee754_acos(x);
       double z;
       z = __ieee754_acos(x);
       if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
       if(fabs(x)>1.0) {
               return __kernel_standard(x,x,1); /* acos(|x|>1) */
       } else
           return z;

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