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# gutow / Algebra_with_Sympy Public

Defines an Algebraic equation which can be rearranged using SymPy.

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Algebraic Equations with SymPy

author: Jonathan Gutow gutow@uwosh.edu

date: January 2021

This tool defines relations that all high school and college students would recognize as mathematical equations. They consist of a left hand side (lhs) and a right hand side (rhs) connected by the relation operator "=".

This tool applies operations to both sides of the equation simultaneously, just as students are taught to do when attempting to isolate (solve for) a variable. Thus the statement `Equation/b` yields a new equation `Equation.lhs/b = Equation.rhs/b`

The intent is to allow using the mathematical tools in SymPy to rearrange equations and perform algebra in a stepwise fashion using as close to standard mathematical notation as possible. In this way more people can successfully perform algebraic rearrangements without stumbling over missed details such as a negative sign. This mimics the capabilities available in SageMath and Maxima, but can be installed in a generic python environment.

Once the algebra is complete it is possible to substitute numbers with units into the solved equation to calculate a numerical solution with proper units.

Setup/Installation: Use pip to install in your python environment: `python pip -U Algebra_with_SymPy` To use in a running python session issue the following command : `from algebra_with_sympy import *`. This will also import the SymPy tools. If you want to isolate this tool from the global namespace you are working with change the import statement to `import algebra_with_sympy as spa`, where `spa` stands for "SymPy Algebra". Then all calls would be made to ` spa.funcname()`.

Usage examples can be found in the docstrings and the demonstration Jupyter notebook `Demonstration of equation class.ipynb` in this git repository.

Defines an Algebraic equation which can be rearranged using SymPy.