diff options
Diffstat (limited to 'lib/msun/ld80/s_expl.c')
| -rw-r--r-- | lib/msun/ld80/s_expl.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/lib/msun/ld80/s_expl.c b/lib/msun/ld80/s_expl.c index 5b07276..a86a5c8 100644 --- a/lib/msun/ld80/s_expl.c +++ b/lib/msun/ld80/s_expl.c @@ -235,7 +235,8 @@ long double expl(long double x) { union IEEEl2bits u, v; - long double fn, q, r, r1, r2, t, t23, t45, twopk, twopkp10000, z; + long double fn, q, r, r1, r2, t, twopk, twopkp10000; + long double z; int k, n, n2; uint16_t hx, ix; @@ -288,12 +289,9 @@ expl(long double x) twopkp10000 = v.e; } - /* Evaluate expl(midpoint[n2] + r1 + r2) = tbl[n2] * expl(r1 + r2). */ - /* Here q = q(r), not q(r1), since r1 is lopped like L1. */ - t45 = r * A5 + A4; + /* Evaluate expl(endpoint[n2] + r1 + r2) = tbl[n2] * expl(r1 + r2). */ z = r * r; - t23 = r * A3 + A2; - q = r2 + z * t23 + z * z * t45 + z * z * z * A6; + q = r2 + z * (A2 + r * A3) + z * z * (A4 + r * A5) + z * z * z * A6; t = (long double)tbl[n2].lo + tbl[n2].hi; t = tbl[n2].lo + t * (q + r1) + tbl[n2].hi; |
