sympy
https://github.com/sympy/sympy
Python
A computer algebra system written in pure Python
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- Issues
- Substituting symbols with SparseMatrix in simple expressions raises ValueError
- square proportion match has no result
- Key Invariance not ensured
- Should is_square be in the main namespace?
- exponential of MatrixSymbol only has very limited working operator set(undocumented)
- Should Sum accept domains like S.Naturals0 as limits?
- Absence of some utility methods for Matrix
- Raise errors for scalars in matrix conjugate, transpose, adjoint
- Subscript unicode printing behavior inconsistency between 2.7 & 3
- Inconsistencies when solving different types of relational expressions
- Docs
- Python not yet supported