Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 245 insertions, 0 deletions

diff --git a/src/math/example_test.go b/src/math/example_test.go
new file mode 100644
index 0000000..a26d8cb
--- /dev/null
+++ b/src/math/example_test.go
@@ -0,0 +1,245 @@
+// Copyright 2017 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_test
+
+import (
+	"fmt"
+	"math"
+)
+
+func ExampleAcos() {
+	fmt.Printf("%.2f", math.Acos(1))
+	// Output: 0.00
+}
+
+func ExampleAcosh() {
+	fmt.Printf("%.2f", math.Acosh(1))
+	// Output: 0.00
+}
+
+func ExampleAsin() {
+	fmt.Printf("%.2f", math.Asin(0))
+	// Output: 0.00
+}
+
+func ExampleAsinh() {
+	fmt.Printf("%.2f", math.Asinh(0))
+	// Output: 0.00
+}
+
+func ExampleAtan() {
+	fmt.Printf("%.2f", math.Atan(0))
+	// Output: 0.00
+}
+
+func ExampleAtan2() {
+	fmt.Printf("%.2f", math.Atan2(0, 0))
+	// Output: 0.00
+}
+
+func ExampleAtanh() {
+	fmt.Printf("%.2f", math.Atanh(0))
+	// Output: 0.00
+}
+
+func ExampleCopysign() {
+	fmt.Printf("%.2f", math.Copysign(3.2, -1))
+	// Output: -3.20
+}
+
+func ExampleCos() {
+	fmt.Printf("%.2f", math.Cos(math.Pi/2))
+	// Output: 0.00
+}
+
+func ExampleCosh() {
+	fmt.Printf("%.2f", math.Cosh(0))
+	// Output: 1.00
+}
+
+func ExampleSin() {
+	fmt.Printf("%.2f", math.Sin(math.Pi))
+	// Output: 0.00
+}
+
+func ExampleSincos() {
+	sin, cos := math.Sincos(0)
+	fmt.Printf("%.2f, %.2f", sin, cos)
+	// Output: 0.00, 1.00
+}
+
+func ExampleSinh() {
+	fmt.Printf("%.2f", math.Sinh(0))
+	// Output: 0.00
+}
+
+func ExampleTan() {
+	fmt.Printf("%.2f", math.Tan(0))
+	// Output: 0.00
+}
+
+func ExampleTanh() {
+	fmt.Printf("%.2f", math.Tanh(0))
+	// Output: 0.00
+}
+
+func ExampleSqrt() {
+	const (
+		a = 3
+		b = 4
+	)
+	c := math.Sqrt(a*a + b*b)
+	fmt.Printf("%.1f", c)
+	// Output: 5.0
+}
+
+func ExampleCeil() {
+	c := math.Ceil(1.49)
+	fmt.Printf("%.1f", c)
+	// Output: 2.0
+}
+
+func ExampleFloor() {
+	c := math.Floor(1.51)
+	fmt.Printf("%.1f", c)
+	// Output: 1.0
+}
+
+func ExamplePow() {
+	c := math.Pow(2, 3)
+	fmt.Printf("%.1f", c)
+	// Output: 8.0
+}
+
+func ExamplePow10() {
+	c := math.Pow10(2)
+	fmt.Printf("%.1f", c)
+	// Output: 100.0
+}
+
+func ExampleRound() {
+	p := math.Round(10.5)
+	fmt.Printf("%.1f\n", p)
+
+	n := math.Round(-10.5)
+	fmt.Printf("%.1f\n", n)
+	// Output:
+	// 11.0
+	// -11.0
+}
+
+func ExampleRoundToEven() {
+	u := math.RoundToEven(11.5)
+	fmt.Printf("%.1f\n", u)
+
+	d := math.RoundToEven(12.5)
+	fmt.Printf("%.1f\n", d)
+	// Output:
+	// 12.0
+	// 12.0
+}
+
+func ExampleLog() {
+	x := math.Log(1)
+	fmt.Printf("%.1f\n", x)
+
+	y := math.Log(2.7183)
+	fmt.Printf("%.1f\n", y)
+	// Output:
+	// 0.0
+	// 1.0
+}
+
+func ExampleLog2() {
+	fmt.Printf("%.1f", math.Log2(256))
+	// Output: 8.0
+}
+
+func ExampleLog10() {
+	fmt.Printf("%.1f", math.Log10(100))
+	// Output: 2.0
+}
+
+func ExampleRemainder() {
+	fmt.Printf("%.1f", math.Remainder(100, 30))
+	// Output: 10.0
+}
+
+func ExampleMod() {
+	c := math.Mod(7, 4)
+	fmt.Printf("%.1f", c)
+	// Output: 3.0
+}
+
+func ExampleAbs() {
+	x := math.Abs(-2)
+	fmt.Printf("%.1f\n", x)
+
+	y := math.Abs(2)
+	fmt.Printf("%.1f\n", y)
+	// Output:
+	// 2.0
+	// 2.0
+}
+func ExampleDim() {
+	fmt.Printf("%.2f\n", math.Dim(4, -2))
+	fmt.Printf("%.2f\n", math.Dim(-4, 2))
+	// Output:
+	// 6.00
+	// 0.00
+}
+
+func ExampleExp() {
+	fmt.Printf("%.2f\n", math.Exp(1))
+	fmt.Printf("%.2f\n", math.Exp(2))
+	fmt.Printf("%.2f\n", math.Exp(-1))
+	// Output:
+	// 2.72
+	// 7.39
+	// 0.37
+}
+
+func ExampleExp2() {
+	fmt.Printf("%.2f\n", math.Exp2(1))
+	fmt.Printf("%.2f\n", math.Exp2(-3))
+	// Output:
+	// 2.00
+	// 0.12
+}
+
+func ExampleExpm1() {
+	fmt.Printf("%.6f\n", math.Expm1(0.01))
+	fmt.Printf("%.6f\n", math.Expm1(-1))
+	// Output:
+	// 0.010050
+	// -0.632121
+}
+
+func ExampleTrunc() {
+	fmt.Printf("%.2f\n", math.Trunc(math.Pi))
+	fmt.Printf("%.2f\n", math.Trunc(-1.2345))
+	// Output:
+	// 3.00
+	// -1.00
+}
+
+func ExampleCbrt() {
+	fmt.Printf("%.2f\n", math.Cbrt(8))
+	fmt.Printf("%.2f\n", math.Cbrt(27))
+	// Output:
+	// 2.00
+	// 3.00
+}
+
+func ExampleModf() {
+	int, frac := math.Modf(3.14)
+	fmt.Printf("%.2f, %.2f\n", int, frac)
+
+	int, frac = math.Modf(-2.71)
+	fmt.Printf("%.2f, %.2f\n", int, frac)
+	// Output:
+	// 3.00, 0.14
+	// -2.00, -0.71
+}