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。該程序包提供了Float64frombits()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Float64frombits()函數。
用法:
func Float64frombits(a uint64) float64
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 Float64frombits() function
res_1:= math.Float64frombits(2)
res_2:= math.Float64frombits(1)
res_3:= math.Float64frombits(0)
res_4:= math.Float64frombits(23)
// 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: 1e-323 Result 2: 5e-324 Result 3: 0 Result 4: 1.14e-322
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 Float64frombits() function
nvalue_1:= math.Float64frombits(3)
nvalue_2:= math.Float64frombits(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: 1.5e-323 Result 2: 2.47e-322 Sum of Result 1 and Result 2: 2.6e-322
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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.Float64frombits() 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。