# Todolist

* Improve fix recognition (DONE)
* More flexible expression parsing (DONE)
* bug: expression can't handle -(-2)
* Overload + - * for expression (DONE ~ no steps yet)
* Expression should be able to simplify expression with ":"
* Add name to polynom (DONE)

* Expression parents class and his children: Numerical_exp, toGenerate_exp and formal expression
* Create tbl sgn and variation render
* Make less verbose fractions operations