robust-split

robust-split JS library on GitHub robust-split JS library on npm Download robust-split JS library

convert a number into a 2-part non-overlapping sequence

Version 1.0.0 License MIT
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robust-split JS library on GitHub
robust-split JS library on npm
Download robust-split JS library
Keywords
robustfloatexactnonoverlapping

robust-split

Use this package when you want to split a double precision floating point number into a 2-part non-overlapping sequence.

Why would you ever want to do that? Well these sequences are an efficient way to perform exact mathmatical operations on numbers in javascript.

install

npm install robust-split

If you want to use this in the browser, check out browserify

use


var rsplit = require('robust-split');

var p = rsplit(0.3);

console.log(p); //[ 2.980232227667301e-9,
                //  0.29999999701976776 ]

You could then pass the sequence into [robust-estimate-float](https://github.com/tmpvar/robust-estimate-float)

var num = require('robust-estimate-float');

var r = num(p);

console.log(r) // 0.3

See the rest of the robust family of packages

credits

This code is pulled from Mikola Lysenko's Robust arithmetic in JavaScript class notes.