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math: fix typo in Log1p comments

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Also note the special case of -0.0.

R=rsc, golang-dev, gri
CC=golang-dev
https://golang.org/cl/5435084
This commit is contained in:
Charles L. Dorian 2011-11-27 18:01:08 -08:00 committed by Robert Griesemer
parent 68e7363b56
commit f1fecf8d2a
1 changed files with 2 additions and 1 deletions
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3
src/pkg/math/log1p.go
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@ -44,7 +44,7 @@ package math
// 2 4 6 8 10 12 14
// R(z) ~ Lp1*s +Lp2*s +Lp3*s +Lp4*s +Lp5*s +Lp6*s +Lp7*s
// (the values of Lp1 to Lp7 are listed in the program)
// a-0.2929nd
// and
// | 2 14 | -58.45
// | Lp1*s +...+Lp7*s - R(z) | <= 2
// | |
@ -88,6 +88,7 @@ package math
//
// Special cases are:
// Log1p(+Inf) = +Inf
// Log1p(±0) = ±0
// Log1p(-1) = -Inf
// Log1p(x < -1) = NaN
// Log1p(NaN) = NaN