求 Golang 中复数的十进制对数
Go 语言借助 cmplx 包，为复数的基本常数和数学函数提供内置支持。允许你借助 math/cmplx 包提供的 Log10()函数求指定复数的十进制对数。因此，您需要在 import 关键字的帮助下在程序中添加一个 math/cmplx 包来访问 Log10()函数。
语法:
func Log10(y complex128) complex128
例 1:
// Golang program to illustrate how to find the
// decimal logarithm of the given complex number
package main
import (
"fmt"
"math/cmplx"
)
// Main function
func main() {
// Finding decimal logarithm of
// the specified complex number
// Using Log10() function
res_1 := cmplx.Log10(1i)
res_2 := cmplx.Log10(-4 + 12i)
res_3 := cmplx.Log10(-3 - 9i)
// Displaying the result
fmt.Printf("Result 1: %.1f", res_1)
fmt.Printf("\nResult 2: %.1f", res_2)
fmt.Printf("\nResult 3: %.1f", res_3)
}
输出:
Result 1: (0.0+0.7i)
Result 2: (1.1+0.8i)
Result 3: (1.0-0.8i)
例 2:
// Golang program to illustrate how to find the
// decimal logarithm of the given complex number
package main
import (
"fmt"
"math/cmplx"
)
// Main function
func main() {
cnumber_1 := complex(0, 2)
cnumber_2 := complex(4, 6)
// Finding decimal logarithm
cvalue_1 := cmplx.Log10(cnumber_1)
cvalue_2 := cmplx.Log10(cnumber_2)
// Sum of the given values
res := cvalue_1 + cvalue_2
// Displaying results
fmt.Println("Complex Number 1: ", cnumber_1)
fmt.Printf("Decimal logarithm 1: %.1f", cvalue_1)
fmt.Println("\nComplex Number 2: ", cnumber_2)
fmt.Printf("Decimal logarithm 2: %.1f ", cvalue_2)
fmt.Printf("\nSum : %.1f", res)
}
输出:
Complex Number 1: (0+2i)
Decimal logarithm 1: (0.3+0.7i)
Complex Number 2: (4+6i)
Decimal logarithm 2: (0.9+0.4i)
Sum : (1.2+1.1i)
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