sympy
https://github.com/sympy/sympy
Python
A computer algebra system written in pure Python
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- Issues
- Fix Piecewise folding over sums with bound variables
- wrong result: `integrate(sqrt(2 - x) * sqrt(1 / (2 - x)), (x, 0, 1))`
- Experiencing "NameError: name 'DiracDelta' is not defined" when getting samples
- Fix Interval.is_subset(Union) returning None when interval spans a gap
- Add type annotations
- `Expr.equals()` returns `False` for mathematically equal expressions derived from `Matrix.exp()`
- ci(bleeding-edge): fall back to PyPI when nightly wheels are missing
- stats: fix IndexError for bare RandomSymbol mixed with concrete RVs
- fix(core/relational): don't trust diff cancellation in is_ge for extended reals
- sympy.stats: mixed bare/concrete probability spaces crash in pspace() / IndependentProductPSpace
- Docs
- Python not yet supported