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CLEO - Circuits Learned by Example Online
On our site you will find over 250 examples covering a two-semester course sequence in engineering linear circuit analysis, including AC and DC circuits, phasors, op amps, transients, power, and Laplace-based analysis. The examples are designed by electrical engineering professors who collectively have 15 years experience teaching circuit analysis. You can browse and search for examples that are similar to your own homework problems, giving you the practice and instruction you’re looking for. Once you work an example as a practice problem, you can check your answer to get quick feedback about how well you can apply what you have learned in class. When you need help working the example, watch a short video in which the professor works the example in detail and explains each step along the way. If you have speakers or headphones, be sure they are turned on so you can follow the professor’s audio explanation, or you can watch the captioned version.Gyre&Gimble
This blog has moved to a new site: http://www.abstractmath.org/Word%20Press/ Most of the articles that were on this site are now on the new site with the same name. The series of articles entitled Definitions into Mathematical Objects have been consolidated into an article entitled Introduction to Forms .Division by Zero
Last weekend I was in Lexingon, Kentucky for MathFest 2011 . I had a very nice time and saw some very good talks. I thought, just for fun, that I’d share a couple of juicy mathematical tidbits I learned. Fibonacci numbers and the golden ratioA few days ago, Endre Szemerédi was awarded the 2012 Abel prize “for his fundamental contributions to discrete mathematics and theoretical computer science, and in recognition of the profound and lasting impact of these contributions on additive number theory and ergodic theory.” The full citation for the prize may be found here , and the written notes for a talk given by Tim Gowers on Endre’s work at the announcement may be found here (and video of the talk can be found here ). As I was on the Abel prize committee this year, I won’t comment further on the prize, but will instead focus on what is arguably Endre’s most well known result, namely Szemerédi’s theorem on arithmetic progressions : Theorem 1 (Szemerédi’s theorem) Let be a set of integers of positive upper density, thus , where . Then contains an arithmetic progression of length for any

