What are the common methods in the go language math package?

Commonly used methods in the go language math package are: 1. Absolute value method Abs(); 2. Power method Pow(); 3. Square root method Sqrt(); 4. Cube root method Cbrt(); 5. Up rounding method Ceil(); 6. Down rounding method Floor().

The environment of this article: Windows 10 system, Go 1.11.2 version, this article is applicable to all brands of computers.

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Detailed introduction:

The commonly used methods in the math package are as follows:

package main import ( "fmt" "math" ) func main() { /* 取绝对值,函数签名如下: func Abs(x float64) float64 */ fmt.Printf("[-3.14]的绝对值为:[%.2f]\n", math.Abs(-3.14)) /* 取x的y次方，函数签名如下: func Pow(x, y float64) float64 */ fmt.Printf("[2]的16次方为:[%.f]\n", math.Pow(2, 16)) /* 取余数，函数签名如下: func Pow10(n int) float64 */ fmt.Printf("10的[3]次方为:[%.f]\n", math.Pow10(3)) /* 取x的开平方，函数签名如下: func Sqrt(x float64) float64 */ fmt.Printf("[64]的开平方为:[%.f]\n", math.Sqrt(64)) /* 取x的开立方，函数签名如下: func Cbrt(x float64) float64 */ fmt.Printf("[27]的开立方为:[%.f]\n", math.Cbrt(27)) /* 向上取整，函数签名如下: func Ceil(x float64) float64 */ fmt.Printf("[3.14]向上取整为:[%.f]\n", math.Ceil(3.14)) /* 向下取整，函数签名如下: func Floor(x float64) float64 */ fmt.Printf("[8.75]向下取整为:[%.f]\n", math.Floor(8.75)) /* 取余数，函数签名如下: func Floor(x float64) float64 */ fmt.Printf("[10/3]的余数为:[%.f]\n", math.Mod(10, 3)) /* 分别取整数和小数部分,函数签名如下: func Modf(f float64) (int float64, frac float64) */ Integer, Decimal := math.Modf(3.14159265358979) fmt.Printf("[3.14159265358979]的整数部分为:[%.f],小数部分为:[%.14f]\n", Integer, Decimal) }

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