lpt234 wrote:In fact, it is, since (a+b)=(a+b)^2=a^2+ba+ab+b^2=a+ba+ab+b. Then, ba+ab=0. Also, 4x=4x^2=(2x)^2=2x. Then, 2x=0. So, we have 0=ab+ab=ab+ba. Then ab=ba.
ded8381 wrote:Any advice for those taking it in November?
mdornbos wrote:And how about the numerical analysis question on interpolation?
ded8381 wrote:Any advice for those taking it in November?
Chapel wrote:Oh yeah. That one seemed simple when I first looked at it but after what felt like half hour of number crunching I ended up with a number that wasn't even remotely similar to a choice. A lot of time down the drain on that question.
For that one you really want to use Lagrange polynomials, I can't imagine trying to do it another way. I haven't taken numerical analysis, but I've seen them creep into a couple different algebra classes.
john wrote:It's only the 70th percentile on the Putnam, but given the exam's reputation, I would hope that it would offset my GRE scores somewhat.
Your school didn't offer the Putnam? Do you attend a really small school or something? That's weird!
Chapel wrote:john wrote:It's only the 70th percentile on the Putnam, but given the exam's reputation, I would hope that it would offset my GRE scores somewhat.
Your school didn't offer the Putnam? Do you attend a really small school or something? That's weird!
The math department at NYIT is really lazy and by the time I got there mostly regarded themselves as nothing more than a support role for the engineering schools. I had taken a bunch of math classes to fill general electives (because I liked math) so when I left the Architecture program a math major was a perfect fit. I probably should have transfered, but I wasn't inclined to do that to finish my last 20 credits at the time.
You're correct, it'd be around the 90th percentile of people with nonzero scores. But you'd still be in the top 10 percent of the best math majors in the country.
john wrote:I'd say the top of the Putnam crowd is still a fair representation of the best in the country though, even if a few are left out.
Chapel wrote:john wrote:I'd say the top of the Putnam crowd is still a fair representation of the best in the country though, even if a few are left out.
So is it more fair to say sufficient but not necessary.
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