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I'm pissed about a class right now

Dissipate

Dissipate

Diamond Member
In one of my C.S. classes we briefly studied recurrence relations and how to solve them. Anyways, I didn't do well on one of the midterms because I couldn't solve one of the recurrence relations that was on the exam. We were supposed to write out a few terms and find a pattern for the general formula.

So, in order to make up for that bad midterm I was working on some extra credit problems. All of the problems are solving recurrence relations. I finished 4 out of 5 of them, until I got to a hard one. And I mean this thing was practically impossible to solve. But the thing had a hint so I googled some keywords for that type of recurrence relation.

I finally found a .pdf that had examples on how to solve that type. But it actually explained how to solve those kinds in general.

So I used that method to solve the last problem on the extra credit. But then I realized that the method would also have applied to the problem on the exam. I tried it out and it worked perfect, and it was all mechanical. No having to look for a pattern and then guess the formula.

This method was absolutely nowhere to be found in my textbook. If only I had known this before the exam. Argh! :|

A couple of my friends missed that problem on the exam also. When I show them this method they are going to flip their lids.
 
Yes it is harsh when that happens 🙁

Well next time do a bit of searching on the net to see if you can find a better method :thumbsup:. But yeah either way it is really b!tching when stuff like this happens 🙁

Koing
 
Originally posted by: Koing
Yes it is harsh when that happens 🙁

Well next time do a bit of searching on the net to see if you can find a better method :thumbsup:. But yeah either way it is really b!tching when stuff like this happens 🙁

Koing
Click to expand...

I'm already over it. What's fair is fair. You are right, I should have studied more for this exam.

I was just temporarily saddened by the fact that I found this technique last night.
 
Originally posted by: sniperruff
chances are, the prof said it on class.
Click to expand...

Nope. I went to every single lecture and took notes. This technique was nowhere in the book, was never spoken of in class and was not mentioned by any T.A. in any discussion.

I do not believe we were even supposed to know of this technique because it allows you to completely bypass the iterative method where you have to write out a few terms and search for a pattern.
 
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