# Golang math.Sqrt2 Constant with Examples

Golang | math.Sqrt2 Constant: Here, we are going to learn about Sqrt2 constant of the math package with its usages, syntax, and examples.
Submitted by IncludeHelp, on August 24, 2021

## math.Sqrt2 Constant

The Sqrt2 constant is an inbuilt constant of the math package which is used to get the square root of 2, approximately equal to 1.414.

Syntax:

```float64 math.Sqrt2
```

Parameter(s):

• None

Return Value:

The return type of math.Sqrt2 constant is float64, it returns the square root of 2.

Example 1:

```// Golang program to demonstrate the
// example of math.Sqrt2 Constant

package main

import (
"fmt"
"math"
)

func main() {
fmt.Printf("Type of math.Sqrt2 is %T\n", math.Sqrt2)
fmt.Println("Value of math.Sqrt2:", math.Sqrt2)
}
```

Output:

```Type of math.Sqrt2 is float64
Value of math.Sqrt2: 1.4142135623730951
```

Explanation:

In the above program, we imported the math package to use the math.Sqrt2 constant, then printed the type and value of the math.Sqrt2 constant.

Example 2:

```// Golang program to demonstrate the
// example of math.Sqrt2 Constant

package main

import (
"fmt"
"math"
)

// creating function to return
// the value of Sqrt2.
func getSqrt2() float64 {
return math.Sqrt2
}

func main() {
fmt.Println("Value of math.Sqrt2:", getSqrt2())
}
```

Output:

```Value of math.Sqrt2: 1.4142135623730951
```