@fav/arith.reduce

@fav/arith.reduce

Reduces a number for accurate arithmetics.

"fav" is an abbreviation of "favorite" and also the acronym of "for all versions". This package is intended to support all Node.js versions and many browsers as possible. At least, this package supports Node.js >= v0.10 and major Web browsers: Chrome, Firefox, IE11, Edge, Vivaldi and Safari.

Install

To install from npm:

$ npm install --save @fav/arith.number @fav/arith.reduce

NOTE: npm < 2.7.0 does not support scoped package, but old version Node.js supports it. So when you use such older npm, you should download this package from github.com, and move it in node_modules/@fav/arith.reduce/ directory manually.

Usage

For Node.js:

var reduce = require('@fav/arith.reduce');
var ArithNumber = require('@fav/arith.number');

var num1 = new ArithNumber(123, 45, 1);  // => { numerator: 123, denominator: 45, exponent: 1 }

var num2 = num1.reduce();  // => { numerator: 41, denominator: 15, exponent: 1 }

For Web browsers:

<script src="fav.arith.number.min.js"></script>
<script src="fav.arith.reduce.min.js"></script>
<script>
var reduce = fav.arith.reduce;
var arithNumber = fav.arith.number;

var num1 = new ArithNumber(123, 45, 1);  // => { numerator: 123, denominator: 45, exponent: 1 }

var num2 = num1.reduce();  // => { numerator: 41, denominator: 15, exponent: 1 }
</script>

API

reduce(arithNumber) : ArithNumber

Reduces an ArithNumber object which consists of three integer: numerator, denominator, exponent and of which value is ( numerator / denominator ) * 10^exponent.

Parameters:

Parameter	Type	Description
arithNumber	ArithNumber	An ArithNumber object to be reduced.

Returns:

An new ArithNumber object which was reduced.

Type: ArithNumber

Checked

Node.js (4〜)

Platform	4	5	6	7	8	9	10
macOS	◯	◯	◯	◯	◯	◯	◯
Windows10	◯	◯	◯	◯	◯	◯	◯
Linux	◯	◯	◯	◯	◯	◯	◯

io.js (1〜3)

Platform	1	2	3
macOS	◯	◯	◯
Windows10	◯	◯	◯
Linux	◯	◯	◯

Node.js (〜0.12)

Platform	0.8	0.9	0.10	0.11	0.12
macOS	◯	◯	◯	◯	◯
Windows10	◯	◯	◯	◯	◯
Linux	◯	◯	◯	◯	◯

Web browsers

Platform	Chrome	Firefox	Vivaldi	Safari	Edge	IE11
macOS	◯	◯	◯	◯	--	--
Windows10	◯	◯	◯	--	◯	◯
Linux	◯	◯	◯	--	--	--

License

Copyright (C) 2018 Takayuki Sato

This program is free software under MIT License. See the file LICENSE in this distribution for more details.