michaelbaldry/math_engine — pull request #4 by mdelaossa (2012-05-31 19:51:52+00:00)
Title: Implemented case_sensitive

I promise unit tests will come this weekend. Meanwhile... I implemented case insensitivity.

```case_sensitive``` is set to true by default. To set it false you need to initialize the engine with ```MathEngine.new(false)``` or set the instance variable to false after creating the object.