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authorEric Andersen <andersen@codepoet.org>2002-05-09 04:43:18 +0000
committerEric Andersen <andersen@codepoet.org>2002-05-09 04:43:18 +0000
commite4071b93db0e2fd4aa3b678a6188da2de1c8eb2f (patch)
treeb74cdef21bbdd7d4d09676befce548127217893d /test/math/etanh.c
parent5a25d0f3bc0c9ac81c43b05646575744e93d126c (diff)
Rework the math library tests per the glibc math test code, with
many unsupported tests disabled for the moment. -Erik
Diffstat (limited to 'test/math/etanh.c')
-rw-r--r--test/math/etanh.c52
1 files changed, 0 insertions, 52 deletions
diff --git a/test/math/etanh.c b/test/math/etanh.c
deleted file mode 100644
index 8014c6d93..000000000
--- a/test/math/etanh.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/* xtanh.c */
-/* hyperbolic tangent check routine */
-/* this subroutine is used by the exponential function routine */
-/* by Stephen L. Moshier. */
-
-
-
-#include "ehead.h"
-
-
-void etanh( x, y )
-unsigned short *x, *y;
-{
-unsigned short e[NE], r[NE], j[NE], xx[NE], m2[NE];
-short i, n;
-long lj;
-
-emov( x, r );
-r[NE-1] &= (unsigned short )0x7fff;
-if( ecmp(r, eone) >= 0 )
- {
-/* tanh(x) = (exp(x) - exp(-x)) / (exp(x) + exp(-x))
- * Note eexp() calls xtanh, but with an argument less than (1 + log 2)/2.
- */
- eexp( r, e );
- ediv( e, eone, r );
- esub( r, e, xx );
- eadd( r, e, j );
- ediv( j, xx, y );
- return;
- }
-
-emov( etwo, m2 );
-eneg( m2 );
-
-n = NBITS/8; /* Number of terms to do in the continued fraction */
-lj = 2 * n + 1;
-ltoe( &lj, j );
-
-emov( j, e );
-emul( x, x, xx );
-
-/* continued fraction */
-for( i=0; i<n; i++)
- {
- ediv( e, xx, r );
- eadd( m2, j, j );
- eadd( r, j, e );
- }
-
-ediv( e, x, y );
-}