Finding the Natural Logarithm of Complex Number in Golang
Last Updated :
01 Apr, 2020
Go language provides inbuilt support for basic constants and mathematical functions for complex numbers with the help of the cmplx package. You are allowed to find the natural logarithm of the specified complex number with the help of Log() function provided by the math/cmplx package. So, you need to add a math/cmplx package in your program with the help of the import keyword to access the Log() function.
Syntax:
func Log(y complex128) complex128
Let us discuss this concept with the help of the given examples:
Example 1:
package main
import (
"fmt"
"math/cmplx"
)
func main() {
res_1 := cmplx.Log(1i)
res_2 := cmplx.Log(-4 + 12i)
res_3 := cmplx.Log(-3 - 9i)
fmt.Printf("Result 1: %.1f", res_1)
fmt.Printf("\nResult 2: %.1f", res_2)
fmt.Printf("\nResult 3: %.1f", res_3)
}
|
Output:
Result 1: (0.0+1.6i)
Result 2: (2.5+1.9i)
Result 3: (2.2-1.9i)
Example 2:
package main
import (
"fmt"
"math/cmplx"
)
func main() {
cnumber_1 := complex(0, 2)
cnumber_2 := complex(4, 6)
cvalue_1 := cmplx.Log(cnumber_1)
cvalue_2 := cmplx.Log(cnumber_2)
res := cvalue_1 + cvalue_2
fmt.Println("Complex Number 1: ", cnumber_1)
fmt.Printf("Natural logarithm 1: %.1f", cvalue_1)
fmt.Println("\nComplex Number 2: ", cnumber_2)
fmt.Printf("Natural logarithm 2: %.1f ", cvalue_2)
fmt.Printf("\nSum : %.1f", res)
}
|
Output:
Complex Number 1: (0+2i)
Natural logarithm 1: (0.7+1.6i)
Complex Number 2: (4+6i)
Natural logarithm 2: (2.0+1.0i)
Sum : (2.7+2.6i)
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