# sympy

https://github.com/sympy/sympy

## Python

A computer algebra system written in pure Python

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## Help out

- Issues
- No support for composition of Cross
- Implementation of DifferentialExtension for 'tan'
- trigsimp( ) keeps reconstructing CoordSys3D
- rref wrong on this matrix
- Could not integrate simple odd function which has sin(x)
- incorporating solve_decomposition to solve exp, trig and other equations.
- solveset cannot solve an equation which invert_real can solve
- Some comparisons between rational and irrational numbers are incorrect
- Union could not hold wild symbols
- Multiplying an expression by a Poly does not evaluate when the expression is on the left side of the multiplication
- factor_list fails in symbolic mode when an expression has symbolic fractions, but works fine when the same expression is given as a Poly
- meijerg.is_number is wrong
- SympifyError('could not parse %r' % a, exc)
- Point class in vector module express coordinates only in rectangular coordinate system
- Integrating a expression exceeds maximum recursion depth
- 'gamma function pole' error when float (instead of int) used in Laplace expression
- latex() and mul_symbol
- Error solving system of ODEs
- [WIP] Remove BasicMeta/ordering of classes
- One test failing under pytest, but not under ./bin/test

- Docs