Big numbers for MakeCode

This library contains ports of the following libraries to MakeCode:

• Google's JavaScript BigInt library, a.k.a. JSBI and
• MikeMcl's big.js library
• (Perhaps) Daninet's exactnumber library

This will start as a TypeScript-only implementation; it eventually will include support for the Blocks interface.

TODO

• Change namespace to BigNum.
• Add appropriate jsdoc and cleanup documentation.
• Allow creation from boolean.
• Add annotations to enhance debugger support.
• Allow number arguments to operations where supported.
• Implement method chaining to support things like a.multiply(x).add(b).mod(m).mod(p).
• Add remaining JSBI operations.
  • Right shift.
• Add BigInt constants.
  • BigInt.Zero
  • BigInt.One
  • BigInt.Two
  • BigInt.NegativeOne
• Add BigInt.IsPrime (Use Miller deterministic algorithm.)
• Add tests from big.js library.
  • Streamline testing where appropriate.
  • Backport appropriate tests to BigInt.
• Add big.js library.
• Add exactnumber.ts library.

Open this page at https://robo-technical-group.github.io/pxt-arcade-bignum/

Use as Extension

This repository can be added as an extension in MakeCode.

• open https://arcade.makecode.com/
• click on New Project
• click on Extensions under the gearwheel menu
• search for https://github.com/robo-technical-group/pxt-arcade-bignum and import

Edit this project

To edit this repository in MakeCode.

• open https://arcade.makecode.com/
• click on Import then click on Import URL
• paste https://github.com/robo-technical-group/pxt-arcade-bignum and click import

Blocks preview

This image shows the blocks code from the last commit in master. This image may take a few minutes to refresh.

Metadata (used for search, rendering)

• for PXT/arcade

<script src="https://makecode.com/gh-pages-embed.js"></script><script>makeCodeRender("{{ site.makecode.home_url }}", "{{ site.github.owner_name }}/{{ site.github.repository_name }}");</script>