s_atan.c File Reference

#include "cdefs-compat.h"
#include <float.h>
#include <openlibm_math.h>
#include "math_private.h"

Include dependency graph for s_atan.c:

Functions
OLM_DLLEXPORT double	atan (double x)

Variables
static const double	atanhi []
static const double	atanlo []
static const double	aT []
static const double	one = 1.0
static const double	huge = 1.0e300

Function Documentation

atan()

OLM_DLLEXPORT double atan

(

double

x

)

References aT, atanhi, atanlo, fabs(), GET_HIGH_WORD, GET_LOW_WORD, huge, low, one, s1, s2, w, and z.

Referenced by __ieee754_atan2(), atan_test(), and main().

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Variable Documentation

aT

const double aT[]

static

Initial value:

= {
  3.33333333333329318027e-01, 
 -1.99999999998764832476e-01, 
  1.42857142725034663711e-01, 
 -1.11111104054623557880e-01, 
  9.09088713343650656196e-02, 
 -7.69187620504482999495e-02, 
  6.66107313738753120669e-02, 
 -5.83357013379057348645e-02, 
  4.97687799461593236017e-02, 
 -3.65315727442169155270e-02, 
  1.62858201153657823623e-02, 
}

Referenced by atan().

atanhi

const double atanhi[]

static

Initial value:

= {
  4.63647609000806093515e-01, 
  7.85398163397448278999e-01, 
  9.82793723247329054082e-01, 
  1.57079632679489655800e+00, 
}

Referenced by atan().

atanlo

const double atanlo[]

static

Initial value:

= {
  2.26987774529616870924e-17, 
  3.06161699786838301793e-17, 
  1.39033110312309984516e-17, 
  6.12323399573676603587e-17, 
}

Referenced by atan().

huge

const double huge = 1.0e300

static

Referenced by atan().

one

const double one = 1.0

static

Referenced by atan().