https://github.com/lcbx/calculus

a proof of concept library to handle derivation of mathematical expression in Python
https://github.com/lcbx/calculus

Last synced: about 1 month ago
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a proof of concept library to handle derivation of mathematical expression in Python

• Host: GitHub
• URL: https://github.com/lcbx/calculus
• Owner: Lcbx
• Created: 2019-10-23T17:59:05.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2019-10-24T19:56:51.000Z (over 6 years ago)
• Last Synced: 2025-03-17T01:43:46.873Z (over 1 year ago)
• Language: Python
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
## Calculus  

A simple and elegant way of calculating mathematical derivatives    

Uses overloaded operators on a custom Var class to construct a mathematical expression tree.  

Expressions can be evaluated, derived and simplified by manipulating said tree.  

Supports addition, multiplication and partly exponents. Only about 80 effective Lines of code

Example :  

``` python

a, b, c = Var(2.), Var(3.), Var(6.)

expr = a + b * c

print("a =", a.value, "  b =", b.value, "  c =", c.value, "   and f =", expr,"=", expr.evaluate())

print("f'(a) =", expr.d(a), "=", expr.d(a).simplify(), "=", expr.d(a).evaluate()) # 1 + (0 * 3 + 6 * 0)

print("f'(b) =", expr.d(b), "=", expr.d(b).simplify(), "=", expr.d(b).evaluate()) # 0 + (0 * 3 + 6 * 1)

print("f'(c) =", expr.d(c), "=", expr.d(c).simplify(), "=", expr.d(c).evaluate()) # 0 + (1 * 3 + 6 * 0)

```  

Result: