Friday, October 10, 2008

Unwinding

My blog was apparently flagged by a spam filtering system implemented by blogger.com... They say the system is inherently fuzzy... I wonder if it uses fuzzy logic and whether I will learn about it in later CSC theory courses.

I really like the way Danny first discussed and showed how the sum of the Fibonacci sequence up to n is equal to F(n+2) - 1. Then in the next lecture, showed us how to unwind T(n) of zpf(n), where the same sequence of Fibonacci sums showed up. The way he structures the course is really helping me learn more than I would have otherwise.

I am still feeling unclear about how to get from unwinding to a closed form, how and if unwinding helps in proofs. I was feeling the same about PSI, PCI, PWO as well, but now I feel quite comfortable with them. I'm sure with a bit of time and practice I will feel comfortable and clear about it

Written the first term test today. It was not too bad, but I wish I had time to finish the subset question... I believe I was on the right track . If I had 10 more minutes I might have finished a correct proof. I suppose I spent more time than I should have on the other questions, which are pretty straightforward.

In response to Danny's comment on my test structure concern post: I thought the test was structured quite well and fairly. Although personally I felt that I spent more time looking for insight than I'd have been comfortable with, and possibly more time than Danny intended. Not so used to doing the problems with such a short time constraint. All the practice I had in a1 and problem sets have days-long time constraints. I will be keeping that in mind while I do problems from now on, and perhaps not taking such a leisurely pace.

1 comment:

Danny Heap said...

The spam flagging has me worried. Write me with anything else you learn about it.