Introduction to Regular Expressions and Midterm#2

This week,we had our 2nd midterm.I actually studied less for this midterm than the first one,and surprisingly,i feel i will fare much better on this one,Since the concepts covered in the midterm(closed form,precondition=>postcondition,loop invariant) have been ingrained into my head through countless iterations of the Assignment and problem sets.Also,in lecture this week,we began regular expressions,which entail creating a unique language consisting of certain characters(certain string,binary numbers etc),and using it in a program context to define certain algorithims.In my next post,i will go into more detail about this,as i am still no very clear on the subject yet.