# Finding the Hyperbolic Tangent 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 hyperbolic tangent of the specified complex number with the help of Tanh() 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 Tanh() function.

Syntax:

`func Tanh(y complex128) complex128`

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

Example 1 :

 `// Golang program to illustrate how to find the``// hyperbolic tangent of the specified complex``// number`` ` `package main`` ` `import (``    ``"fmt"``    ``"math/cmplx"``)`` ` `// Main function``func main() {`` ` `    ``// Finding hyperbolic tangent of ``    ``// the specified complex number``    ``// Using Tanh() function``    ``res_1 := cmplx.Tanh(1 + 5i)``    ``res_2 := cmplx.Tanh(-2 + 8i)``    ``res_3 := cmplx.Tanh(-1 - 2i)`` ` `    ``// Displaying the result``    ``fmt.Println(``"Result 1: "``, res_1)``    ``fmt.Println(``"Result 2: "``, res_2)``    ``fmt.Println(``"Result 3: "``, res_3)``}`

Output:

```Result 1:  (1.2407479829240697-0.1861094776473042i)
Result 2:  (-1.0356479469632376-0.010925884335752532i)
Result 3:  (-1.16673625724092+0.24345820118572523i)
```

Example 2 :

 `// Golang program to illustrate how to find the``// hyperbolic tangent of the specified complex``// number`` ` `package main`` ` `import (``    ``"fmt"``    ``"math/cmplx"``)`` ` `// Main function``func main() {`` ` `    ``cnumber_1 := complex(0, 2)``    ``cnumber_2 := complex(4, 6)`` ` `    ``// Finding hyperbolic tangent``    ``cvalue_1 := cmplx.Tanh(cnumber_1)``    ``cvalue_2 := cmplx.Tanh(cnumber_2)`` ` `    ``// Sum of two hyperbolic tangent values``    ``res := cvalue_1 + cvalue_2`` ` `    ``// Displaying results``    ``fmt.Println(``"Complex Number 1: "``, cnumber_1)``    ``fmt.Println(``"Hyperbolic tangent 1: "``, cvalue_1)`` ` `    ``fmt.Println(``"Complex Number 2: "``, cnumber_2)``    ``fmt.Println(``"Hyperbolic tangent 2: "``, cvalue_2)``    ``fmt.Println(``"Sum : "``, res)`` ` `}`

Output:

```Complex Number 1:  (0+2i)
Hyperbolic tangent 1:  (0-2.185039863261519i)
Complex Number 2:  (4+6i)
Hyperbolic tangent 2:  (0.9994339325466381-0.0003597965782916252i)
Sum :  (0.9994339325466381-2.1853996598398107i)
```

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