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Tweaked the minimax polynomial and improved its comments.

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This commit is contained in:
Bruce Evans 2005-11-12 19:56:35 +00:00
parent 787d6d77d5
commit 6e10a447f8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=152341
1 changed files with 5 additions and 5 deletions
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10
lib/msun/src/k_sinf.c
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@ -21,13 +21,13 @@ static char rcsid[] = "$FreeBSD$";
#include "math.h"
#include "math_private.h"
/* Range of maximum relative error in polynomial: ~[-1.61e-10, 1.621e-10]. */
/* |sin(x)/x - s(x)| < 2**-32.5 (~[-1.57e-10, 1.572e-10]). */
static const float
half = 0.5,
S1 = -0xaaaaab.0p-26, /* -0.1666666716337203979492187500 */
S2 = 0x8888ba.0p-30, /* 0.008333379402756690979003906250 */
S3 = -0xd02cb0.0p-36, /* -0.0001985307317227125167846679687 */
S4 = 0xbe18ff.0p-42; /* 0.000002832675590980215929448604584 */
S1 = -0xaaaaab.0p-26, /* -0.16666667163 */
S2 = 0x8888bb.0p-30, /* 0.0083333803341 */
S3 = -0xd02de1.0p-36, /* -0.00019853517006 */
S4 = 0xbe6dbe.0p-42; /* 0.0000028376084629 */
float
__kernel_sinf(float x, float y, int iy)