https://github.com/subatomicplanets/simplestringmath

A very simple python script which can do math on user-written strings
https://github.com/subatomicplanets/simplestringmath

algorithms data-structures lightweight math numbers python python3 real-time shunting-yard-algorithm simple string-algorithms string-manipulation strings

Last synced: 6 months ago
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A very simple python script which can do math on user-written strings

• Host: GitHub
• URL: https://github.com/subatomicplanets/simplestringmath
• Owner: SubatomicPlanets
• License: mit
• Created: 2023-06-19T13:40:34.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-06-20T19:56:09.000Z (over 1 year ago)
• Last Synced: 2024-06-21T14:00:04.204Z (over 1 year ago)
• Topics: algorithms, data-structures, lightweight, math, numbers, python, python3, real-time, shunting-yard-algorithm, simple, string-algorithms, string-manipulation, strings
• Language: Python
• Homepage:
• Size: 27.3 KB
• Stars: 2
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# SimpleStringMath

This is a very simple example on how to evaluate a mathematical expression from a string.  

It is only one file, simple to use, and is only 100 lines long.  

It can evaluate written out words, and calculate math expressions.  

I made this in python 3.8.10, but really any version should work. I am using only one library, which is built in.  

  

Currently only + - * / ^ % are possible.

If there are any issues, please let me know. I did not have a lot of time for testing.  

# Examples:

- "what's fifty three+7*6/2?" ->  74  

- "what is 9 * 67+90?"         ->  693  

- "2^7"                        ->  128  

- "tell me what pi - 23 * (((((-6) + (2 / (65.4 - one hundred and fourteen))) + 20) - ((5 * 3) * two)) - (0.5 / 0.9)) is."  ->  384.865871835391  

- "-pi+pi"                     ->  0  

- "-pi*two"                    ->  -6.283184

- "(twenty two*2)+one"         ->  45

# How to use

1. you can just read the code, if it interests you.  

2. you can use it as a library by downloading it, importing it in other files, and running the "evaluate" function.  

3. you can download the file and modify it.  

   - add this code to the bottom of the file to make it run when you start it:  

     ```

     while True:

         print(evaluate(input("You: ")))

     ```