kalkki

Modern scientific calculator in the browser inspired by SpeedCrunch

Demo

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Little backstory: I like SpeedCrunch a lot! But with the Finnish matriculation exams moving to a browser-based environment, it will no longer be available! I started this project for fun to try creating a replacement for SpeedCrunch suitable for use in Abitti 2. I might submit it to YTL/Digabi if they can't find a suitable replacement for SpeedCrunch, as I don't like the calculator selection it currently has.

Features

• Familiar terminal style
• Experimental LaTeX pasting support
• Tokenizer based math parser (forked from Abicus)
• Super fast math evaluation powered by GMP and WASM
• History (up and down arrow)
• Progressive Web App for offline usage

Usage

You can do these with your favorite package manager. I like Bun, but it isn't required to run this.

1. bun install
2. bun run dev

Tada! You have a dev server running on :5173. Consult package.json 'scripts' for more information.

TODO

• Variable support
• Autocorrect / suggestions
• Unit conversion
• Make the LaTeX support more stable
• Check the AI-generated Swedish translation

License

Licensed under the MIT license, consult LICENSE for more information.

Credits

• Logo icon: Tabler Icons math-function-x, licensed under MIT, see license.
• Abicus for the math engine, licensed under MIT, see license or src/math/LICENSE