From 7ce331c01ce6eb7b3f5c715a38a24359da9c6ee2 Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 22 Nov 2001 14:04:29 +0000
Subject: 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

---
 libm/float/ellikf.c | 113 ----------------------------------------------------
 1 file changed, 113 deletions(-)
 delete mode 100644 libm/float/ellikf.c

(limited to 'libm/float/ellikf.c')

diff --git a/libm/float/ellikf.c b/libm/float/ellikf.c
deleted file mode 100644
index 8ec890926..000000000
--- a/libm/float/ellikf.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*							ellikf.c
- *
- *	Incomplete elliptic integral of the first kind
- *
- *
- *
- * SYNOPSIS:
- *
- * float phi, m, y, ellikf();
- *
- * y = ellikf( phi, m );
- *
- *
- *
- * DESCRIPTION:
- *
- * Approximates the integral
- *
- *
- *
- *                phi
- *                 -
- *                | |
- *                |           dt
- * F(phi\m)  =    |    ------------------
- *                |                   2
- *              | |    sqrt( 1 - m sin t )
- *               -
- *                0
- *
- * of amplitude phi and modulus m, using the arithmetic -
- * geometric mean algorithm.
- *
- *
- *
- *
- * ACCURACY:
- *
- * Tested at random points with phi in [0, 2] and m in
- * [0, 1].
- *                      Relative error:
- * arithmetic   domain     # trials      peak         rms
- *    IEEE      0,2         10000       2.9e-7      5.8e-8
- *
- *
- */
-
-
-/*
-Cephes Math Library Release 2.2:  July, 1992
-Copyright 1984, 1987, 1992 by Stephen L. Moshier
-Direct inquiries to 30 Frost Street, Cambridge, MA 02140
-*/
-
-/*	Incomplete elliptic integral of first kind	*/
-
-#include <math.h>
-extern float PIF, PIO2F, MACHEPF;
-
-#define fabsf(x) ( (x) < 0 ? -(x) : (x) )
-
-#ifdef ANSIC
-float sqrtf(float), logf(float), sinf(float), tanf(float), atanf(float);
-#else
-float sqrtf(), logf(), sinf(), tanf(), atanf();
-#endif
-
-
-float ellikf( float phia, float ma )
-{
-float phi, m, a, b, c, temp;
-float t;
-int d, mod, sign;
-
-phi = phia;
-m = ma;
-if( m == 0.0 )
-	return( phi );
-if( phi < 0.0 )
-	{
-	phi = -phi;
-	sign = -1;
-	}
-else
-	sign = 0;
-a = 1.0;
-b = 1.0 - m;
-if( b == 0.0 )
-	return(  logf(  tanf( 0.5*(PIO2F + phi) )  )   );
-b = sqrtf(b);
-c = sqrtf(m);
-d = 1;
-t = tanf( phi );
-mod = (phi + PIO2F)/PIF;
-
-while( fabsf(c/a) > MACHEPF )
-	{
-	temp = b/a;
-	phi = phi + atanf(t*temp) + mod * PIF;
-	mod = (phi + PIO2F)/PIF;
-	t = t * ( 1.0 + temp )/( 1.0 - temp * t * t );
-	c = ( a - b )/2.0;
-	temp = sqrtf( a * b );
-	a = ( a + b )/2.0;
-	b = temp;
-	d += d;
-	}
-
-temp = (atanf(t) + mod * PIF)/(d * a);
-if( sign < 0 )
-	temp = -temp;
-return( temp );
-}
-- 
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