# Square Root of 2 > [Square root][@stdlib/math/base/special/sqrt] of `2`.

## Usage ```javascript var SQRT2 = require( '@stdlib/constants/float64/sqrt-two' ); ``` #### SQRT2 [Square root][@stdlib/math/base/special/sqrt] of `2`. ```javascript var bool = ( SQRT2 === 1.4142135623730951 ); // returns true ```

## Examples ```javascript var SQRT2 = require( '@stdlib/constants/float64/sqrt-two' ); console.log( SQRT2 ); // => 1.4142135623730951 ```

[@stdlib/math/base/special/sqrt]: https://www.npmjs.com/package/@stdlib/math-base-special-sqrt