src/pkg/math/sqrt.go - Issue 1098041: code review 1098041: math: signed zero Sqrt special case

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Delta Between Two Patch Sets: src/pkg/math/sqrt.go

Issue 1098041: code review 1098041: math: signed zero Sqrt special case (Closed)

Left Patch Set: Created 14 years, 11 months ago

Right Patch Set: code review 1098041: math: signed zero Sqrt special case Created 14 years, 11 months ago

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1 // Copyright 2009 The Go Authors. All rights reserved.	1 // Copyright 2009 The Go Authors. All rights reserved.

2 // Use of this source code is governed by a BSD-style	2 // Use of this source code is governed by a BSD-style

3 // license that can be found in the LICENSE file.	3 // license that can be found in the LICENSE file.

4	4

5 package math	5 package math

6	6

7 // Sqrt returns the square root of x.	7 // Sqrt returns the square root of x.

8 //	8 //

9 // Special cases are:	9 // Special cases are:

10 // Sqrt(+Inf) = +Inf	10 // Sqrt(+Inf) = +Inf

11 // Sqrt(±0) = ±0	11 // Sqrt(±0) = ±0

12 // Sqrt(x < 0) = NaN	12 // Sqrt(x < 0) = NaN

13 // Sqrt(NaN) = NaN	13 // Sqrt(NaN) = NaN

14 func Sqrt(x float64) float64 { return sqrtGo(x) }	14 func Sqrt(x float64) float64 { return sqrtGo(x) }

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