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Brian Kessler 5305bdd86b math: correct result for Pow(x, ±.5)
Fixes #23224

The previous Pow code had an optimization for
powers equal to ±0.5 that used Sqrt for
increased accuracy/speed.  This caused special
cases involving powers of ±0.5 to disagree with
the Pow spec.  This change places the Sqrt optimization
after all of the special case handling.

Change-Id: I6bf757f6248256b29cc21725a84e27705d855369
Reviewed-on: https://go-review.googlesource.com/85660
Reviewed-by: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-01-02 18:10:43 +00:00
.github doc: add a link to the code of conduct 2017-11-13 16:48:04 +00:00
api strings: fix two Builder bugs allowing mutation of strings, remove ReadFrom 2017-12-11 19:20:05 +00:00
doc doc: 2018 is the Year of the Gopher 2018-01-01 03:45:23 +00:00
lib/time lib/time: update tzdata to 2017c 2017-12-06 19:24:15 +00:00
misc cmd/cgo: make JNI's jobject type map to uintptr in Go 2017-12-08 16:13:14 +00:00
src math: correct result for Pow(x, ±.5) 2018-01-02 18:10:43 +00:00
test cmd/compile: second attempt at fix for issue 23179 2017-12-20 20:39:16 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: automated updates for Go 1.10 2017-12-14 17:12:09 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: automated updates for Go 1.10 2017-12-14 17:12:09 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE
PATENTS
README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
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