golang export_test 代码
文件路径：/src/math/export_test.go
/ Copyright 2011 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
package math
/ Export internal functions for testing.
var ExpGo = exp
var Exp2Go = exp2
var HypotGo = hypot
var SqrtGo = sqrt
var TrigReduce = trigReduce
const ReduceThreshold = reduceThreshold