fraction-math-js

fraction-math-js

bignumber fraction calculator and node module.

need ES6 support!

node4.1.1 arguments:
	--harmony --harmony_array_includes
node7.6.0 no arguments.

Install

npm install fraction-math-js -g

REPL

> fcalc

input expression,like:

fcalc> (1+1)*2/12

(1+1)*2/12  =  1/3

Load

"use strict"

let F = require('fraction-math-js').builder;

Use

let x=F("1+2/3*5");//1+2/3*5 = 13/3 Infix

let y=F("1+",x);//1+x = 16/3

let z=F("+",1,y);//1+y = 19/3 Prefix

let a=F(y,z,"+");//y+z = 35/3 Postfix

console.log("%s",F("+ 1 1"));//1+1=2 postfix and prefix need space

console.log(a.toString());//35/3

console.log(a.n.toString());//35

console.log(a.d.toString());//3

let b=F(a,"+",1.1);//a+1.1 = 383/30

console.log(b.toString());//383/30

console.log(b.toBigNumber().toNumber());//12.766666666666667

Run

//save to sample.js and

> node sample.js

browser(AMD)view demo

<!--write to amd.html-->

<script src="./lib/browser-polyfill.min.js" ></script>

<script src="./lib/require.js"></script>

<!--load babel-polyfill and require.js for es6 and AMD-->

<script>

//load bignumber

define("bignumber.js",["./lib/bignumber.min.js"],function(b){return b;});

//load fraction-math-js

require(["../fraction-math-js-es5.min.js"],function(fraction){

	var F=fraction.builder;

	document.write(F("1 + 1 / 3").toString());

});

</script>

browser(global)view demo

<!--write to global.html-->

<script src="./lib/browser-polyfill.min.js" ></script>

<script src="./lib/bignumber.min.js"></script>

<script src="../fraction-math-js-es5.min.js"></script>

<!--load babel-polyfill , bignumber.js and fraction-math-js-->

<!--fraction-math-js bind to window.FractionMathJs-->

<script>

var F=window.FractionMathJs.builder;

document.write(F("1 + 1 / 3").toString());

</script>