v2.3.1

• Added complexity attribute on all Token instances. Integer, higher values mean higher complexity.
  More on how it's calculated in help(Expression.complexity)
• Added pattern matching (more on that later in README), mostly for cleaner simplification code.

2.2.0

I wish I had time to write a changelog.

Update added Expression.simplify() and switched to a new parser. Hooray!

Read README.

v2.0.3

• Added comments in solving methods, explaining optimizations
• Added Expression.force_solve() for bruteforced expression solution. Raises ValueError if expression yields different results on different inputs.
• Fixed a bug in Expression.equals
• Added Token.is_inversed for better simplification

v2.0.2

Brings a few fixes

v2.0.1

setup.py version fix