A high-precision partially-symbolic calculator with support for units, derivatives, and more.

This is nowhere near complete. Stay tuned.

TODO

Before For 1.0 release

• + as a unary operator
• Compare operators => *, / should have the same priority!
• Commands
• Documentation (usage)
• Documentation (comments)
• Branding
• Units

General

• CLI Options: version, help, evaluate
• Compile to WASM => webapp
• Trig tests
• Fix tests
  • Direct expression printing
  • Better comparison

Internals

• Copy expression
• Non-recursive treeify
• Faster factorial function. Maybe use gamma instead?
• Remove extra calls to .clone()
• Arbitrary precision float (rug doesn't offer arbitrary exponents)

Features

• Variable definitions
• Function definitions
• Units
• Dice
• Mean, Median, Min, Max: arrays and multi-arg functions
• Derivatives
• MiniCAS
• Complex numbers
• Config file
• History to file
• Reference previous results
• acot/acoth functions

Prompt

• Live syntax/output