Embedded Artistry Framework
Embedded Systems C++ Framework
Functions | Variables
e_log2l.c File Reference
#include <openlibm_math.h>
#include "math_private.h"
Include dependency graph for e_log2l.c:

Functions

static long double neval (long double x, const long double *p, int n)
 
static long double deval (long double x, const long double *p, int n)
 
long double log2l (long double x)
 

Variables

static const long double P [13]
 
static const long double Q [12]
 
static const long double R [6]
 
static const long double S [6]
 
static const long double LOG2EA = 4.4269504088896340735992468100189213742664595E-1L
 
static const long double SQRTH = 7.071067811865475244008443621048490392848359E-1L
 

Function Documentation

◆ deval()

static long double deval ( long double  x,
const long double *  p,
int  n 
)
static

References n, and p.

Referenced by log2l().

◆ log2l()

long double log2l ( long double  x)

◆ neval()

static long double neval ( long double  x,
const long double *  p,
int  n 
)
static

References n, and p.

Referenced by log2l().

Variable Documentation

◆ LOG2EA

const long double LOG2EA = 4.4269504088896340735992468100189213742664595E-1L
static

Referenced by log2l().

◆ P

const long double P[13]
static
Initial value:
=
{
1.313572404063446165910279910527789794488E4L,
7.771154681358524243729929227226708890930E4L,
2.014652742082537582487669938141683759923E5L,
3.007007295140399532324943111654767187848E5L,
2.854829159639697837788887080758954924001E5L,
1.797628303815655343403735250238293741397E5L,
7.594356839258970405033155585486712125861E4L,
2.128857716871515081352991964243375186031E4L,
3.824952356185897735160588078446136783779E3L,
4.114517881637811823002128927449878962058E2L,
2.321125933898420063925789532045674660756E1L,
4.998469661968096229986658302195402690910E-1L,
1.538612243596254322971797716843006400388E-6L
}

Referenced by log2l().

◆ Q

const long double Q[12]
static
Initial value:
=
{
3.940717212190338497730839731583397586124E4L,
2.626900195321832660448791748036714883242E5L,
7.777690340007566932935753241556479363645E5L,
1.347518538384329112529391120390701166528E6L,
1.514882452993549494932585972882995548426E6L,
1.158019977462989115839826904108208787040E6L,
6.132189329546557743179177159925690841200E5L,
2.248234257620569139969141618556349415120E5L,
5.605842085972455027590989944010492125825E4L,
9.147150349299596453976674231612674085381E3L,
9.104928120962988414618126155557301584078E2L,
4.839208193348159620282142911143429644326E1L
}

Referenced by log2l().

◆ R

const long double R[6]
static
Initial value:
=
{
1.418134209872192732479751274970992665513E5L,
-8.977257995689735303686582344659576526998E4L,
2.048819892795278657810231591630928516206E4L,
-2.024301798136027039250415126250455056397E3L,
8.057002716646055371965756206836056074715E1L,
-8.828896441624934385266096344596648080902E-1L
}

Referenced by log2l().

◆ S

const long double S[6]
static
Initial value:
=
{
1.701761051846631278975701529965589676574E6L,
-1.332535117259762928288745111081235577029E6L,
4.001557694070773974936904547424676279307E5L,
-5.748542087379434595104154610899551484314E4L,
3.998526750980007367835804959888064681098E3L,
-1.186359407982897997337150403816839480438E2L
}

Referenced by log2l().

◆ SQRTH

const long double SQRTH = 7.071067811865475244008443621048490392848359E-1L
static

Referenced by log2l().