# sympy

https://github.com/sympy/sympy

## Python

A computer algebra system written in pure Python

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## Help out

- Issues
- problems in sum function
- List of modulo operator sequence does not work
- Current state of multivariable stats distributions
- Sum(cos(1/n) - 1, (n, 1, oo)).is_convergent() returns false
- solve() missing a solution for x**(1/x)-1
- solve returns empty list for `x**(1/x) - 1`
- [WIP] Fix Floats comparisons
- Cannot substitute upper limit of Sum created with Idx
- cancel does not return expanded form
- Issues with numeric inequalities
- Fixes solveset output for certain trigonometric equations
- solve with real variables return complex result
- Improved Mathematica parser for multiplication operator
- solveset mishandles domain
- Line wrapping latex equations in the qtconsole
- ntheory: totient() raises TypeError if the input is not a positive integer/Symbol
- more robust detection of inequality args needed for Imageset (and other?)
- Add safe flag to sympify()
- Implemented `._partition_args()` function for Rubi pattern matcher
- solve: removed redundant Dummy vars and subexpressions as symbols

- Docs