# Square Root of the Golden Ratio > Square root of the [Golden ratio][@stdlib/constants/float64/phi] (φ).

## Usage ```javascript var SQRT_PHI = require( '@stdlib/constants/float64/sqrt-phi' ); ``` #### SQRT_PHI Square root of the [golden ratio][@stdlib/constants/float64/phi]. ```javascript var bool = ( SQRT_PHI === 1.272019649514069 ); // returns true ```

## Examples ```javascript var SQRT_PHI = require( '@stdlib/constants/float64/sqrt-phi' ); console.log( SQRT_PHI ); // => 1.272019649514069 ```

[@stdlib/constants/float64/phi]: https://www.npmjs.com/package/@stdlib/constants/tree/main/float64/phi