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, 113 deletions

diff --git a/libm/ldouble/ynl.c b/libm/ldouble/ynl.c
deleted file mode 100644
index 444792850..000000000
--- a/libm/ldouble/ynl.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*							ynl.c
- *
- *	Bessel function of second kind of integer order
- *
- *
- *
- * SYNOPSIS:
- *
- * long double x, y, ynl();
- * int n;
- *
- * y = ynl( n, x );
- *
- *
- *
- * DESCRIPTION:
- *
- * Returns Bessel function of order n, where n is a
- * (possibly negative) integer.
- *
- * The function is evaluated by forward recurrence on
- * n, starting with values computed by the routines
- * y0l() and y1l().
- *
- * If n = 0 or 1 the routine for y0l or y1l is called
- * directly.
- *
- *
- *
- * ACCURACY:
- *
- *
- *       Absolute error, except relative error when y > 1.
- *       x >= 0,  -30 <= n <= +30.
- * arithmetic   domain     # trials      peak         rms
- *    IEEE     -30, 30       10000       1.3e-18     1.8e-19
- *
- *
- * ERROR MESSAGES:
- *
- *   message         condition      value returned
- * ynl singularity   x = 0              MAXNUML
- * ynl overflow                         MAXNUML
- *
- * Spot checked against tables for x, n between 0 and 100.
- *
- */
-
-/*
-Cephes Math Library Release 2.1:  December, 1988
-Copyright 1984, 1987 by Stephen L. Moshier
-Direct inquiries to 30 Frost Street, Cambridge, MA 02140
-*/
-
-#include <math.h>
-extern long double MAXNUML;
-#ifdef ANSIPROT
-extern long double y0l ( long double );
-extern long double y1l ( long double );
-#else
-long double y0l(), y1l();
-#endif
-
-long double ynl( n, x )
-int n;
-long double x;
-{
-long double an, anm1, anm2, r;
-int k, sign;
-
-if( n < 0 )
-	{
-	n = -n;
-	if( (n & 1) == 0 )	/* -1**n */
-		sign = 1;
-	else
-		sign = -1;
-	}
-else
-	sign = 1;
-
-
-if( n == 0 )
-	return( sign * y0l(x) );
-if( n == 1 )
-	return( sign * y1l(x) );
-
-/* test for overflow */
-if( x <= 0.0L )
-	{
-	mtherr( "ynl", SING );
-	return( -MAXNUML );
-	}
-
-/* forward recurrence on n */
-
-anm2 = y0l(x);
-anm1 = y1l(x);
-k = 1;
-r = 2 * k;
-do
-	{
-	an = r * anm1 / x  -  anm2;
-	anm2 = anm1;
-	anm1 = an;
-	r += 2.0L;
-	++k;
-	}
-while( k < n );
-
-
-return( sign * an );
-}