A calculator repl, with variables, functions & Mathematica like dynamic plots.

A calculator repl that processes mathematical expressions. Does basic arithmetic, and provides pre-defined basic mathematical functions.

Provides binding functionality for variables and functions, and plotting support for functions with arbitrary number of arguments.

Calculator

A feature rich calculator repl.

Features

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

Installation

Linux users

From hackage:

stack install gtk2hs-buildtools
PATH="$HOME/.local/bin:$PATH" stack install calculator

From the repo:

stack install gtk2hs-buildtools # From a directory with no stack.yaml
cd /path/to/calculator/repo
PATH="$HOME/.local/bin:$PATH" stack install

Windows users

This should work, assuming the PATH variable is set correctly:

cmd> stack install gtk2hs-buildtools
cmd> stack install calculator

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.