phibase

Node.js module for number conversion to/from phi-based numeral system.

Installation

npm install phibase

Then you can require it as npm module, or just include in your page via script tag (it will be exported as window.PhiBase).

Documentation

PhiBase.R

Utility class for rational numbers.

PhiBase.R5

Utility class for numbers of kind a + b√5, where a and b are instances of R.

PhiBase.toPhiBase(Number | R | R5) => String

Converts number to its phi-based representation. For floating point JS number it will throw error, please use R class for rational numbers.

PhiBase.fromPhiBase(String) => R5

Computes R5 value of given phi-based representation. Use .valueOf method to get plain JS number.

PhiBase.noConflict() => PhiBase

Browser-only method which restores original value of PhiBase variable and returns module object.

Examples

var PhiBase = require("phibase");
var fromPhiBase = PhiBase.fromPhiBase,
	toPhiBase = PhiBase.toPhiBase,
	R = PhiBase.R,
	R5 = PhiBase.R5;

console.log(toPhiBase(1)); // "1"
console.log(toPhiBase(2)); // "10.01"
console.log(toPhiBase(10)); // "10100.0101"

var oneThird = R(1, 3);
console.log(toPhiBase(oneThird)) // "0.(00101000)"

var minusTwoAndHalf = fromPhiBase("-10.10100(001)");
console.log(minusTwoAndHalf.toString()); // "-5/2"
console.log(minusTwoAndHalf.valueOf()); // -2.5

var phi = R5(1, 1).div(2);
console.log(phi.toString()); // "1/2+1/2√5"
console.log(phi.valueOf()); // 1.618033988749895