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doc: add Cos, Sin, LCM, GCD function

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dudaodong
2023-05-30 11:47:00 +08:00
parent 2701bcc4d2
commit db9b045500
2 changed files with 337 additions and 0 deletions
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168
docs/mathutil.md
View File

@@ -33,6 +33,10 @@ import (
- [RadianToAngle](#RadianToAngle) - [RadianToAngle](#RadianToAngle)
- [PointDistance](#PointDistance) - [PointDistance](#PointDistance)
- [IsPrime](#IsPrime) - [IsPrime](#IsPrime)
- [GCD](#GCD)
- [LCM](#LCM)
- [Cos](#Cos)
- [Sin](#Sin)
<div STYLE="page-break-after: always;"></div> <div STYLE="page-break-after: always;"></div>
@@ -375,3 +379,167 @@ func main() {
// true // true
} }
``` ```
### <span id="GCD">GCD</span>
<p>Return greatest common divisor (GCD) of integers.</p>
<b>Signature:</b>
```go
func GCD(integers ...int) int
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.GCD(1, 1)
result2 := mathutil.GCD(1, -1)
result3 := mathutil.GCD(-1, 1)
result4 := mathutil.GCD(-1, -1)
result5 := mathutil.GCD(3, 6, 9)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 1
// 1
// -1
// -1
// 3
}
```
### <span id="LCM">LCM</span>
<p>Return Least Common Multiple (LCM) of integers.</p>
<b>Signature:</b>
```go
func LCM(integers ...int) int
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.LCM(1, 1)
result2 := mathutil.LCM(1, 2)
result3 := mathutil.LCM(3, 6, 9)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 2
// 18
}
```
### <span id="Cos">Cos</span>
<p>Returns the cosine of the radian argument.</p>
<b>Signature:</b>
```go
func Cos(radian float64, precision ...int) float64
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.Cos(0)
result2 := mathutil.Cos(90)
result3 := mathutil.Cos(180)
result4 := mathutil.Cos(math.Pi)
result5 := mathutil.Cos(math.Pi / 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 1
// -0.447
// -0.598
// -1
// 0
}
```
### <span id="Sin">Sin</span>
<p>Returns the sine of the radian argument.</p>
<b>Signature:</b>
```go
func Sin(radian float64, precision ...int) float64
```
<b>Example:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.Sin(0)
result2 := mathutil.Sin(90)
result3 := mathutil.Sin(180)
result4 := mathutil.Sin(math.Pi)
result5 := mathutil.Sin(math.Pi / 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 0
// 0.894
// -0.801
// 0
// 1
}
```

169
docs/mathutil_zh-CN.md
View File

@@ -33,6 +33,10 @@ import (
- [RadianToAngle](#RadianToAngle) - [RadianToAngle](#RadianToAngle)
- [PointDistance](#PointDistance) - [PointDistance](#PointDistance)
- [IsPrime](#IsPrime) - [IsPrime](#IsPrime)
- [GCD](#GCD)
- [LCM](#LCM)
- [Cos](#Cos)
- [Sin](#Sin)
<div STYLE="page-break-after: always;"></div> <div STYLE="page-break-after: always;"></div>
@@ -375,3 +379,168 @@ func main() {
// true // true
} }
``` ```
### <span id="GCD">GCD</span>
<p>计算整数最大公约数。</p>
<b>函数签名:</b>
```go
func GCD(integers ...int) int
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.GCD(1, 1)
result2 := mathutil.GCD(1, -1)
result3 := mathutil.GCD(-1, 1)
result4 := mathutil.GCD(-1, -1)
result5 := mathutil.GCD(3, 6, 9)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 1
// 1
// -1
// -1
// 3
}
```
### <span id="LCM">LCM</span>
<p>计算整数最小公倍数。</p>
<b>函数签名:</b>
```go
func LCM(integers ...int) int
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.LCM(1, 1)
result2 := mathutil.LCM(1, 2)
result3 := mathutil.LCM(3, 6, 9)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
// Output:
// 1
// 2
// 18
}
```
### <span id="Cos">Cos</span>
<p>计算弧度的余弦值。</p>
<b>函数签名:</b>
```go
func Cos(radian float64, precision ...int) float64
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.Cos(0)
result2 := mathutil.Cos(90)
result3 := mathutil.Cos(180)
result4 := mathutil.Cos(math.Pi)
result5 := mathutil.Cos(math.Pi / 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 1
// -0.447
// -0.598
// -1
// 0
}
```
### <span id="Sin">Sin</span>
<p>计算弧度的正弦值。</p>
<b>函数签名:</b>
```go
func Sin(radian float64, precision ...int) float64
```
<b>示例:</b>
```go
package main
import (
"fmt"
"github.com/duke-git/lancet/mathutil"
)
func main() {
result1 := mathutil.Sin(0)
result2 := mathutil.Sin(90)
result3 := mathutil.Sin(180)
result4 := mathutil.Sin(math.Pi)
result5 := mathutil.Sin(math.Pi / 2)
fmt.Println(result1)
fmt.Println(result2)
fmt.Println(result3)
fmt.Println(result4)
fmt.Println(result5)
// Output:
// 0
// 0.894
// -0.801
// 0
// 1
}
```