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Bug 997459 - Part 1: Coefficients for polevl_sin with lower mean error. r=sunfish

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This commit is contained in:
Emanuel Hoogeveen 2014-04-21 10:16:18 -04:00
parent cd222b8d92
commit 15aa33d555
1 changed files with 7 additions and 7 deletions
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14
js/src/jsmath.cpp
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@ -365,18 +365,18 @@ js::math_clz32(JSContext *cx, unsigned argc, Value *vp)
static double polevl_sin(double z, double zz)
{
// Constants taken from fdlibm k_sin.c
double ans = 1.58969099521155010221e-10;
// Constants generated using Mathematica's GeneralMiniMaxApproximation
double ans = 1.59046813973877163292e-10; // 6152825598094877 / exp2(85)
ans *= zz;
ans += -2.50507602534068634195e-08;
ans += -2.50509001624159785668e-08; // -7571170002733246 / exp2(78)
ans *= zz;
ans += 2.75573137070700676789e-06;
ans += 2.75573146431678644161e-06; // 6506786951439440 / exp2(71)
ans *= zz;
ans += -1.98412698298579493134e-04;
ans += -1.98412698327005105692e-04; // -7320136534024805 / exp2(65)
ans *= zz;
ans += 8.33333333332248946124e-03;
ans += 8.33333333332626768897e-03; // 4803839602524456 / exp2(59)
ans *= zz;
ans += -1.66666666666666324348e-01;
ans += -1.66666666666666490881e-01; // -6004799503160655 / exp2(55)
ans *= zz * z;
ans += z;
return ans;