ca is an arbitrary precision calculator. It can do simple linear math with fully accurate results, and exposes this with a simple REPL.

• Basic operators (+ - * / % ^ =)
• No loss of precision, accurate representation of repeating decimals
• Implicit multiplication (adjacent products) with incorrect precedence
• Variables and variable binding (a := 2b, b := .5)
• Partial evaluation, leaving unknowns and recursive definitions in place
• Partial Unicode glyph support
• Function application with or without parens (floor 3.5)
• An incomplete set of functions (floor, ceil, round, trunc, fract, abs)
• Half-baked functionality: sets (like (1,2,3) or ())

To try ca, just clone the repository and run cargo run with Rust stable:

$ git clone https://github.com/qoh/ca
$ cd ca
$ cargo run

Please and thanks.