quipu-math

Mathematics of Incan knotted cord (quipu) data structures for JavaScript/TypeScript.

Quipu are Incan knotted cord recording devices. This package implements the mathematics of knotted data structures: encoding numbers as knot sequences, building cord hierarchies, arithmetic on quipus, and error detection via parity knots.

Ported from the Python quipu-math package.

Install

npm install quipu-math

Usage

import { encodeNumber, decodeKnots, Cord, CordTree, addQuipus } from "quipu-math";

// Encode a number as a knot sequence
const knots = encodeNumber(247);

// Decode back
const n = decodeKnots(knots); // 247

// Build a cord tree
const tree = new CordTree();
tree.addPendant(new Cord("red", encodeNumber(100)));
tree.addPendant(new Cord("blue", encodeNumber(47)));

// Quipu arithmetic
const result = addQuipus(tree, otherTree);

API

• knot: encodeNumber(n), decodeKnots(knots), checksum(knots)
• cord: Cord class with addKnot, serialize(), deserialize(json), CordTree class with addPendant, traverse()
• weave: weave(cord1, cord2), unweave(cord), isAssociative(a, b, c)
• arithmetic: addQuipus(t1, t2), subtractQuipus(t1, t2), multiplyQuipus(t1, t2)
• detect: detectCorruption(original, copy) → CorruptionReport

Test

npm test

MIT License