term2dot

Calculator that computes a mathematical term given as input and exports the expression tree as Graphviz file.

Features

• Basic arithmetic:
  • addition (+)
  • subtraction (-)
  • multiplication (*)
  • division (/)
  • raise to the power of (^)
• Brackets
• Standard functions (abs, sqrt)
• Exponential and logarithmic functions (exp, log)
• Trigonomic functions (cos, sin, tan)
• Hyperbolic functions (cosh, sinh, tanh)

Installation Requirements

• bison
• flex
• C++ Compiler (e.g. g++)
• make utility (e.g. gmake)
• graphviz
• xdot (optional)

Installation

The calc application is built in the source code directory with the command:

$ make

Usage

Call calc with a mathematical term as an argument in order to generate a Graphviz file. If no further arguments are given, the name of the output file is term.dot.

$ ./calc "3-5*2"

In order to use a different file use the option -o:

$ ./calc -o my_term.dot "3-5*2"

The resulting graph can be viewed with the xdot command:

$ xdot term.dot

Alternatively it can be converted into an image with the dot utility from the Graphviz package:

$ dot -Tpng term.dot -o term.png