求 Golang 中复数的正弦值
原文:https://www . geesforgeks . org/finding-the-sine-of-complex-number-in-golang/
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。您可以借助数学/cmplx 软件包提供的 Sin()函数找到指定复数的正弦值。因此，您需要借助 import 关键字在程序中添加一个 math/cmplx 包来访问 Sin()函数。
语法:
func Sin(y complex128) complex128
让我们借助给定的例子来讨论这个概念:
例 1:
// Golang program to illustrate how to find
// the sine value of the given complex number
package main
import (
"fmt"
"math/cmplx"
)
// Main function
func main() {
// Finding sine of the
// specified complex number
// Using Sin() function
res_1 := cmplx.Sin(2 + 5i)
res_2 := cmplx.Sin(-1 + 8i)
res_3 := cmplx.Sin(-1 - 7i)
// Displaying the result
fmt.Println("Result 1:", res_1)
fmt.Println("Result 2:", res_2)
fmt.Println("Result 3:", res_3)
}
输出:
Result 1: (67.47891523845587-30.879431343588244i)
Result 2: (-1254.1949676545178+805.3091464217314i)
Result 3: (-461.3928755590023-296.25646574921427i)
例 2 :
// Golang program to illustrate how to find
// the sine value of the given complex number
package main
import (
"fmt"
"math/cmplx"
)
// Main function
func main() {
cnumber_1 := complex(1, 2)
cnumber_2 := complex(3, 6)
// Finding sine
cvalue_1 := cmplx.Sin(cnumber_1)
cvalue_2 := cmplx.Sin(cnumber_2)
// Sum of two sine values
res := cvalue_1 + cvalue_2
// Displaying results
fmt.Println("Complex Number 1: ", cnumber_1)
fmt.Println("Sine 1: ", cvalue_1)
fmt.Println("Complex Number 2: ", cnumber_2)
fmt.Println("Sine 2: ", cvalue_2)
fmt.Println("Sum : ", res)
}
输出:
Complex Number 1: (1+2i)
Sine 1: (3.165778513216168+1.9596010414216063i)
Complex Number 2: (3+6i)
Sine 2: (28.466112195402218-199.69451226216125i)
Sum : (31.631890708618386-197.73491122073966i)
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