Wednesday, July 29, 2009

Day 11, Monday, Shashi and I Exchange Words on Math

I woke up late and just went out the back entrance of my apartment complex.


I found a driving range. It was a private driving range next to a hotel. They both looked quite luxurious. I couldn't actually see the golfers, but the area was clearly marked as a Golf Club, available to members only, and over the buldings in the foreground, I could see the tall screens that keep golf balls in a driving range.

I turned around and walked down a path finding some other shops. There was a golf shop, a bakery, and a mini market. At the market I bought some wheat bread. I was looking for as specific brand of delicious healthy whole wheat bread, but I only found some other stuff. I took it.

I came back home and studied some math; I did several precalculus probems, thus completing one of the first chapters in my math book. It is talking about analytical geometry, roots of polynomial expressions, and basic rules and names of functions.

My roommate Shashi came home and tried a couple problems. Some of these problems took me a long time; he was able to solve them at a much faster rate, and he knew some tricks that I didn't know. Shashi is extremely fast and makes calculations in seconds with great confidence, and without looking back. Eventually we argued about a method he was using to determine the sign of a rational expression (like 1/x, or 1/(x-1)); after some disputes, a couple motivating examples, and a bet, we concluded that the method could be used under specific conditions.


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