Totally rework the math library, this time based on the MacOs X

math library (which is itself based on the math lib from FreeBSD).
 -Erik

1 files changed, 0 insertions, 128 deletions

diff --git a/libm/ldouble/unityl.c b/libm/ldouble/unityl.c
deleted file mode 100644
index 10670ce3a..000000000
--- a/libm/ldouble/unityl.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*							unityl.c
- *
- * Relative error approximations for function arguments near
- * unity.
- *
- *    log1p(x) = log(1+x)
- *    expm1(x) = exp(x) - 1
- *    cosm1(x) = cos(x) - 1
- *
- */
-
-
-/* log1p(x) = log(1 + x)
- *                      Relative error:
- * arithmetic   domain     # trials      peak         rms
- *    IEEE      0.5, 2      30000       1.4e-19     4.1e-20
- *
- */
-
-#include <math.h>
-/* Coefficients for log(1+x) = x - x**2/2 + x**3 P(x)/Q(x)
- * 1/sqrt(2) <= x < sqrt(2)
- * Theoretical peak relative error = 2.32e-20
- */
-static long double LP[] = {
- 4.5270000862445199635215E-5L,
- 4.9854102823193375972212E-1L,
- 6.5787325942061044846969E0L,
- 2.9911919328553073277375E1L,
- 6.0949667980987787057556E1L,
- 5.7112963590585538103336E1L,
- 2.0039553499201281259648E1L,
-};
-static long double LQ[] = {
-/* 1.0000000000000000000000E0L,*/
- 1.5062909083469192043167E1L,
- 8.3047565967967209469434E1L,
- 2.2176239823732856465394E2L,
- 3.0909872225312059774938E2L,
- 2.1642788614495947685003E2L,
- 6.0118660497603843919306E1L,
-};
-
-#define SQRTH 0.70710678118654752440L
-#define SQRT2 1.41421356237309504880L
-#ifdef ANSIPROT
-extern long double logl ( long double );
-extern long double expl ( long double );
-extern long double cosl ( long double );
-extern long double polevll ( long double, void *, int );
-extern long double p1evll ( long double,  void *, int );
-#else
-long double logl(), expl(), cosl(), polevll(), p1evll();
-#endif
-
-long double log1pl(x)
-long double x;
-{
-long double z;
-
-z = 1.0L + x;
-if( (z < SQRTH) || (z > SQRT2) )
-	return( logl(z) );
-z = x*x;
-z = -0.5L * z + x * ( z * polevll( x, LP, 6 ) / p1evll( x, LQ, 6 ) );
-return (x + z);
-}
-
-
-
-/* expm1(x) = exp(x) - 1  */
-
-/*  e^x =  1 + 2x P(x^2)/( Q(x^2) - P(x^2) )
- * -0.5 <= x <= 0.5
- */
-
-static long double EP[3] = {
- 1.2617719307481059087798E-4L,
- 3.0299440770744196129956E-2L,
- 9.9999999999999999991025E-1L,
-};
-static long double EQ[4] = {
- 3.0019850513866445504159E-6L,
- 2.5244834034968410419224E-3L,
- 2.2726554820815502876593E-1L,
- 2.0000000000000000000897E0L,
-};
-
-long double expm1l(x)
-long double x;
-{
-long double r, xx;
-
-if( (x < -0.5L) || (x > 0.5L) )
-	return( expl(x) - 1.0L );
-xx = x * x;
-r = x * polevll( xx, EP, 2 );
-r = r/( polevll( xx, EQ, 3 ) - r );
-return (r + r);
-}
-
-
-
-/* cosm1(x) = cos(x) - 1  */
-
-static long double coscof[7] = {
- 4.7377507964246204691685E-14L,
--1.1470284843425359765671E-11L,
- 2.0876754287081521758361E-9L,
--2.7557319214999787979814E-7L,
- 2.4801587301570552304991E-5L,
--1.3888888888888872993737E-3L,
- 4.1666666666666666609054E-2L,
-};
-
-extern long double PIO4L;
-
-long double cosm1l(x)
-long double x;
-{
-long double xx;
-
-if( (x < -PIO4L) || (x > PIO4L) )
-	return( cosl(x) - 1.0L );
-xx = x * x;
-xx = -0.5L*xx + xx * xx * polevll( xx, coscof, 6 );
-return xx;
-}