# Finding the Conjugate of the Complex Number in Golang

• Last Updated : 27 Mar, 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 conjugate of the specified complex number with the help of Conj() 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 Conj() function.

Syntax:

`func Conj(y complex128) complex128`

Let us discuss this concept with the help of the given examples:

Example 1:

 `// Golang program to illustrate how to find``// conjugate of the given complex number`` ` `package main`` ` `import (``    ``"fmt"``    ``"math/cmplx"``)`` ` `// Main function``func main() {`` ` `    ``// Finding conjugate of the ``    ``// specified complex number``    ``// Using Conj() function``    ``res_1 := cmplx.Conj(5i)``    ``res_2 := cmplx.Conj(-1 + 12i)``    ``res_3 := cmplx.Conj(-7 - 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)``}`

Output:

```Result 1: (0.0-5.0i)
Result 2: (-1.0-12.0i)
Result 3: (-7.0+9.0i)
```

Example 2:

 `// Golang program to illustrate how to find``// conjugate of the given complex number`` ` `package main`` ` `import (``    ``"fmt"``    ``"math/cmplx"``)`` ` `// Main function``func main() {`` ` `    ``cnumber_1 := complex(0, 2)``    ``cnumber_2 := complex(1, 6)`` ` `    ``// Finding conjugate of the``    ``// given complex numbers``    ``cvalue_1 := cmplx.Conj(cnumber_1)``    ``cvalue_2 := cmplx.Conj(cnumber_2)`` ` `    ``// Sum of the given values``    ``res := cvalue_1 + cvalue_2`` ` `    ``// Displaying results``    ``fmt.Println(``"Complex Number 1: "``, cnumber_1)``    ``fmt.Printf(``"Conjugate 1: %.1f"``, cvalue_1)`` ` `    ``fmt.Println(``"\nComplex Number 2: "``, cnumber_2)``    ``fmt.Printf(``"Conjugate 2: %.1f "``, cvalue_2)``    ``fmt.Printf(``"\nSum : %.1f"``, res)`` ` `}`

Output:

```Complex Number 1:  (0+2i)
Conjugate 1: (0.0-2.0i)
Complex Number 2:  (1+6i)
Conjugate 2: (1.0-6.0i)
Sum : (1.0-8.0i)
```

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