1/4 times π.
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> One fourth times the mathematical constant [π][pi].
``bash`
npm install @stdlib/constants-float64-fourth-pi
`javascript`
var FOURTH_PI = require( '@stdlib/constants-float64-fourth-pi' );
#### FOURTH_PI
One fourth times the mathematical constant [π][pi].
`javascript`
var bool = ( FOURTH_PI === 7.85398163397448309616e-1 );
// returns true
`javascript
var FOURTH_PI = require( '@stdlib/constants-float64-fourth-pi' );
console.log( FOURTH_PI );
// => 7.85398163397448309616e-1
`
*
`c`
#include "stdlib/constants/float64/fourth_pi.h"
#### STDLIB_CONSTANT_FLOAT64_FOURTH_PI
Macro for one fourth times the mathematical constant [π][pi].
*
- [@stdlib/constants-float64/pi][@stdlib/constants/float64/pi]: π.
*
This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].
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[pi]: https://en.wikipedia.org/wiki/Pi
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