# Square Root of 0.5π > Square root of the mathematical constant [π][@stdlib/constants/float64/pi] divided by 2.

## Usage ```javascript var SQRT_HALF_PI = require( '@stdlib/constants/float64/sqrt-half-pi' ); ``` #### SQRT_HALF_PI Square root of the mathematical constant [π][@stdlib/constants/float64/pi] divided by `2`. ```javascript var bool = ( SQRT_HALF_PI === 1.2533141373155003 ); // returns true ```

## Examples ```javascript var SQRT_HALF_PI = require( '@stdlib/constants/float64/sqrt-half-pi' ); console.log( SQRT_HALF_PI ); // => 1.2533141373155003 ```

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