mirror of
https://github.com/gonum/gonum.git
synced 2025-10-05 15:16:59 +08:00
26 lines
619 B
Go
26 lines
619 B
Go
// Copyright ©2015 The gonum Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//+build !amd64 noasm appengine
|
|
|
|
package math32
|
|
|
|
import (
|
|
"math"
|
|
)
|
|
|
|
// Sqrt returns the square root of x.
|
|
//
|
|
// Special cases are:
|
|
// Sqrt(+Inf) = +Inf
|
|
// Sqrt(±0) = ±0
|
|
// Sqrt(x < 0) = NaN
|
|
// Sqrt(NaN) = NaN
|
|
func Sqrt(x float32) float32 {
|
|
// FIXME(kortschak): Direct translation of the math package
|
|
// asm code for 386 fails to build. No test hardware is available
|
|
// for arm, so using conversion instead.
|
|
return float32(math.Sqrt(float64(x)))
|
|
}
|