A simple calculator library.
This module is now a Python package. You can install it using:
$ sudo pip install simplecalculator
Examples of usage:
simplecalculator.py-- a command-line utility
tornadoweb.py-- a TornadoWeb applications with a minimalistic RESTful API. Do you math with curl!
Clone this repo and test it:
$ nosetests tests/*.py
Usage (in your script)
run()with the list of values, operands, and functions you want to process.
The history of operations, results, and unprocessed input is stored in
Here's a short sample:
from calculator.simple import SimpleCalculator c = SimpleCalculator() c.run('1 + 1') print c.log
If you want to read the state of the LCD (no kidding!), use
Usage (on the command line)
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 fmod 0.01"
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 ceil fmod"
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 fmod 0.01 1 2 3 4"
This calculator is as forgiving as a simple desktop calculator, it will ignore what it does not know, try to compute what it can treating the given string as a list of keystrokes. You may see one or more
status entries after the last result, that's intended.
Usage (via curl)
If you want to implement this alculator as a RESTful API, install TornadoWeb and run `tornadoweb.py', then use curl:
$ curl -X POST http://localhost:8888/v1/calculate -d '1 + 2 / 6 acv 1 + 1 / 33 fmod 0.01 1 2 3 4'
You can easily extend this calculator to support any number of one- and two-argument functions, search calculator/simple.py for
ceil to see what modifications you need to make.
I got asked to provide samples of my work, proof I know Python, etc. This project is way more than what I was asked to deliver, but I had more time to spare. There is more coming.