sympy
https://github.com/sympy/sympy
Python
A computer algebra system written in pure Python
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- Issues
- Fix conditional_space with normalize false
- Collect function applies order inconsistently
- Fix/refine pow nested 29684
- `(z * conjugate(z)).is_real` gives `None` instead of `True`
- Fix integrate(sqrt(2-x)*sqrt(1/(2-x))) returning -1 instead of 1
- A negative summation is somehow simplified to a piecewise that retains the sum's index even though there are no more summations
- 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
- Docs
- Python not yet supported