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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:14:23 +0000
commit73df946d56c74384511a194dd01dbe099584fd1a (patch)
treefd0bcea490dd81327ddfbb31e215439672c9a068 /src/math/example_test.go
parentInitial commit. (diff)
downloadgolang-1.16-upstream.tar.xz
golang-1.16-upstream.zip
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/math/example_test.go240
1 files changed, 240 insertions, 0 deletions
diff --git a/src/math/example_test.go b/src/math/example_test.go
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+// 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 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
+}