stdlib-js
<summary>
About stdlib...
</summary>
We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.
The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.
To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
beta
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
[Beta function][beta-function].
bash
npm install @stdlib/math-base-special-beta
javascript
var beta = require( '@stdlib/math-base-special-beta' );
#### beta( x, y )
Evaluates the [beta function][beta-function].
javascript
var val = beta( 0.0, 0.5 );
// returns Infinity
val = beta( 1.0, 1.0 );
// returns 1.0
val = beta( -1.0, 2.0 );
// returns NaN
val = beta( 5.0, 0.2 );
// returns ~3.382
val = beta( 4.0, 1.0 );
// returns 0.25
javascript
var beta = require( '@stdlib/math-base-special-beta' );
var x;
var y;
for ( x = 0; x < 10; x++ ) {
for ( y = 10; y > 0; y-- ) {
console.log( 'x: %d, \t y: %d, \t f(x,y): %d', x, y, beta( x, y ) );
}
}
c
#include "stdlib/math/base/special/beta.h"
#### stdlib_base_beta( a, b )
Evaluates the [beta function][beta-function].
c
double out = stdlib_base_beta( 1.0, 1,0 );
// returns 1.0
out = stdlib_base_beta( 5.0, 0.2);
// returns ~3.382
The function accepts the following arguments:
- a: [in] double input value.
- b: [in] double input value.
c
double stdlib_base_beta ( const double a, const double b );
c
#include "stdlib/math/base/special/beta.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 1.0, 3.0, 5.0, 8.0, 10.0 };
const double y[] = { 2.0, 4.0, 7.0, 9.0, 10.0 };
double out;
int i;
int j;
for ( i = 0; i < 5; i++ ) {
for ( j = 0; j < 5; j++ ){
out = stdlib_base_beta( x[ i ], y[ j ] );
printf ( "x: %lf, y: %lf, out: %lf\n", x[ i ], y[ j ], out );
}
}
}
@stdlib/math-base/special/betainc][@stdlib/math/base/special/betainc]: incomplete beta function.
- [@stdlib/math-base/special/betaincinv][@stdlib/math/base/special/betaincinv]: inverse incomplete beta function.
- [@stdlib/math-base/special/betaln][@stdlib/math/base/special/betaln]: natural logarithm of the beta function.
