A simple calculator library.
Project description
Calculator
==========
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!
How?
----
Clone this repo and tests:
$ python -m unittest test
All good?
Usage (in your script)
-----------------------
1. Import `calculator`
2. Instantiate `SimpleCalculator()`
3. Call `run()` with the list of values, operands, and functions you want to process.
4. The history of operations, results, and unprocessed input is stored in `SimpleCalculator.log`.
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
print c.lcd
Usage (on the command line)
---------------------------
Run:
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 fmod 0.01"
then
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 ceil fmod"
then
$ ./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](http://tornadoweb.org '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 `fmod` and `ceil` to see what modifications you need to make.
Why?
----
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.
Who?
----
Jacek Artymiak
==========
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!
How?
----
Clone this repo and tests:
$ python -m unittest test
All good?
Usage (in your script)
-----------------------
1. Import `calculator`
2. Instantiate `SimpleCalculator()`
3. Call `run()` with the list of values, operands, and functions you want to process.
4. The history of operations, results, and unprocessed input is stored in `SimpleCalculator.log`.
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
print c.lcd
Usage (on the command line)
---------------------------
Run:
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 fmod 0.01"
then
$ ./simplecalculator.py -s "1 + 2 / 6 acv 1 + 1 / 33 ceil fmod"
then
$ ./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](http://tornadoweb.org '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 `fmod` and `ceil` to see what modifications you need to make.
Why?
----
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.
Who?
----
Jacek Artymiak
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