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Golang math.Float32frombits()用法及代碼示例

Go語言為基本常數和數學函數提供了內置支持,以借助數學包對數字進行運算。該程序包提供Float32frombits()函數,該函數返回與IEEE 754二進製表示形式a對應的浮點數,其中a的符號位和結果位於相同的位位置。因此,您需要借助import關鍵字在程序中添加數學包,以訪問Float32frombits()函數。

用法:

func Float32frombits(a uint32) float32

範例1:

// Golang program to illustrate how to find 
// the floating-point number corresponding 
// to the IEEE 754 binary representation 
package main 
  
import ( 
    "fmt"
    "math"
) 
  
// Main function 
func main() { 
  
    // Finding floating-point number corresponding 
    // to the IEEE 754 binary representation  
    // of the given numbers 
    // Using Float32frombits() function 
    res_1:= math.Float32frombits(2) 
    res_2:= math.Float32frombits(1) 
    res_3:= math.Float32frombits(0) 
    res_4:= math.Float32frombits(223) 
  
    // Displaying the result 
    fmt.Println("Result 1:", res_1) 
    fmt.Println("Result 2:", res_2) 
    fmt.Println("Result 3:", res_3) 
    fmt.Println("Result 4:", res_4) 
  
}

輸出:

Result 1: 3e-45
Result 2: 1e-45
Result 3: 0
Result 4: 3.12e-43

範例2:

// Golang program to illustrate how to find 
// the floating-point number corresponding 
// to the IEEE 754 binary representation 
package main 
  
import ( 
    "fmt"
    "math"
) 
  
// Main function 
func main() { 
  
    // Finding floating-point number corresponding 
    // to the IEEE 754 binary representation 
    // of the given numbers 
    // Using Float32frombits() function 
    nvalue_1:= math.Float32frombits(3) 
    nvalue_2:= math.Float32frombits(50) 
  
    // Sum of the given values 
    res:= nvalue_1 + nvalue_2 
    fmt.Println("Result 1:", nvalue_1) 
    fmt.Println("Result 2:", nvalue_2) 
    fmt.Println("Sum of Result 1 and Result 2:", res) 
  
}

輸出:

Result 1: 4e-45
Result 2: 7e-44
Sum of Result 1 and Result 2: 7.4e-44



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注:本文由純淨天空篩選整理自Kirti_Mangal大神的英文原創作品 math.Float32frombits() Function in Golang With Examples。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。