Post # 10. Languages and Regular expressions.

When we first started learning about formal languages, I was asking myself whether this material is directly related to Computer Science. However, after doing some research (actually research is way too strong word for the thing I did) I found out that formal languages are of high importance. One of the most practical applications is defining syntactically correct programming languages.  There is also a branch of mathematics and computer science that studies different aspects of such languages, and is called Formal Language Theory.