Calculator

A calculator repl.

Features

• Arithmetic
• Standard mathematical functions
• Variable bindings
• Function bindings
  • Single argument functions
  • Multiple argument functions
• Plotting (Optional)
  • Static plots (no animation)
  • Dynamic plots (for multiple argument functions)

Installation and plotting support

The plotting support is optional as it requires gtk2hs. It is off by default, and can be turned on using a configuration as shown.

To install without plotting support.

$ stack install calculator

To install with plotting support.

$ stack install calculator --flags="plot-gtk-ui"

TODO

Lots and lots of testing.

Implementation

• Written in haskell
• Parsing done using parsec
• Repl built using haskeline
• Colored output using ANSI color codes

Usage

Use :? to view usage instructions.

Thanks

• Thanks to husky for color output.