# Math.SQRT1_2

The Math.SQRT1_2 property represents the square root of 1/2 which is approximately 0.707:

$Math.SQRT1_2 = 1 2 = 1 2 ≈ 0.707 \mathtt{\mi{Math.SQRT1_2}} = \sqrt{\frac{1}{2}} = \frac{1}{\sqrt{2}} \approx 0.707$

Property attributes of Math.SQRT1_2
Writable no
Enumerable no
Configurable no

## Description

Because SQRT1_2 is a static property of Math, you always use it as Math.SQRT1_2, rather than as a property of a Math object you created (Math is not a constructor).

## Examples

### Using Math.SQRT1_2

The following function returns 1 over the square root of 2:

function getRoot1_2() {
return Math.SQRT1_2;
}

getRoot1_2(); // 0.7071067811865476


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