856 B
856 B
Bessel.JS
Pure-JS implementation of the Bessel functions (J,Y,I,K), for node and browser
The standard notation is used here:
- J is the Bessel function of the first kind
- Y is the Bessel function of the second kind
- I is the modified Bessel function of the first kind
- K is the modified Bessel function of the first kind
Usage
The functions besselj, bessely, besseli, besselk are exposed when you include
the script bessel.js:
<script src="bessel.js"></script>
<script>console.log(besselj(1,2));</script>
See test.html for an example
In node, those four functions are exported:
var besselj01 = require('bessel').besselj(0,1);
Each function follows Excel semantics (value, function-order). For example,
bessel.besselj(1.5, 1)
is the value of the bessel function J1 at the point x=1.5