# JavaScript | Math.SQRT1_2 property

The Math.SQRT1_2 is a property in JavaScript which is simply used to find the value of square root of 1/2, whose value is approximately 0.707106.
That is,
(1/2)  = 0.707106

Difference between property and function in javascript.
Property in JavaScript is nothing but a value whereas method is a function this can be understood with the help of an example given below.

 `  `

Output:

```Audi
A8
```

Here as we can see that property of the object car, is going to store the string as “Audi” and it can be accessed with car.name.
sayModel is a method i.e, a function of the object and it can be accessed with car.sayModel().
It can be noticed that sayModel is just a function which use ().
Syntax:

`Math.SQRT1_2;`

Parameters: Here nothing is passed as a parameter because, Math.SQRT1_2 is not a function but it is a property.

Return Values: It simply returns the value of the value of square root of 1/2, whose value is approximately 7071.

Example:

```Input  : Math.SQRT1_2
Output : 0.7071067811865476```

Explanation: Here simply value of square root of 1/2 is shown as output.

Let’s see JavaScript code for Math.SQRT1_2 property:

• Example 1:

 ` `

Output:

```0.7071067811865476
```
• Example 2: Value of square root of 1/2 can be printed as in the form of function as shown below.

 ` `

Output:

`0.7071067811865476`
• Errors and Exceptions: Here we consider Math.SQRT1_2 as a function but in actual it is a property that is why error as output is being shown.

• Example:

 ` ` `  ``// Here we consider Math.SQRT1_2 as a function ` `  ``//but in actual it is a property that is why  ` `  ``//error as output is being shown. ` `  ``document.write(Math.SQRT1_2(12)); ` ` `

Output:

`Error: Math.SQRT1_2 is not a function`

Application: It’s application is to find the value of the square root of 1/2 which is done with the help of this property. In mathematics, it needed a lot.
Let’s see the JavaScript program on this application:

• Example:

 ` `

Output:

`0.7071067811865476`

Supported Browsers: The browsers supported by JavaScript Math.SQRT1_2 property are listed below:

• Interent Explorer
• Firefox
• Opera
• Safari

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