Description:
Geometry at the College Level. (Moderated)
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Rotating triangle on lattice points
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Say I have a traingle with vertices (0,0), (240,0), and (240,180). With I want to rotate this triangle about (0,0) so that the coordinates of the vertices remain integers. I want to count the number of such triangles which upon rotation have integer coordinates. What would be the algorithm for this?... more »
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Circle having sides?
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Now, I know people often debate the idea of a circle having sides. Does a circle have zero sides? Does a circle have one side? Does it have two sides (inside and outside)? Does it have infinitely many sides? Etc. Most people claim that the definition of a side is that it must be straight and therefore a circle does not have sides, because a circle is always perfectly round.... more »
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Locus connected with the Simson point
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...I certainly can't answer your question, but can tell you a good place to ask it. <[link]> is a mail list specializing in triangle geometry, and your question is very much the kind of thing they deal with. Ken Pledger.
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On a property of a line intersectiing two tangents of a cercle
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Let (C) a circle . A is a point outside (C). Let (D1), (D2) two tangents issued from A. (D1) is tangent at K and (D2) is tangent at L respectively. Let (D) a straight line passing through A, between (D1) and (D2). The meeting points with (C) are M and N respectively. Let (LP) the parralel at (D) issued from L, where P is the intersection with(C).... more »
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Call for papers in K-16 Math Education
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Dear Geometry Educators, Academic Exchange Quarterly announces a call for papers on K-16 mathematics education for its Winter 2009 issue. The theme, “Engaging Mathematics Students as Holistic Learners,” is described at [link] . Early submissions accepted through the end of August 2009. See submission... more »
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Square-free decomposition in fields of positive characteristic
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Hi everyone, I have the following doubt. Suppose K is a field of characteristic p>0 and f(X_1,...,X_n) a multivariate polynomial with coefficients in K such that deg(f) < p. Is it true that f admits a square-free descomposition? I mean, with such hypothesis: can the usual algorithm for characteristic 0 be adapted to prove this without asking for the field K to be perfect?... more »
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Best guidance, I ever Got
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Hi I found a very good tutor online. He helps u online, help in completing your homeworks and assignment.No need to meet him in person. I saved almost 500$ that I was wasted in gas going to tutor last year. Anyways If anyone is interested,just mail him on onlinemathtut...@gmail.com Just thought to tell you guys that if you are hopeless with maths, this guy would help you definatively.... more »
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Geometric Methods of Calculating Trigonometric Funtions
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I'm interested in learning the methodology to calculate trigonometric functions without a calculator. I was told by a college chum that the CRC Handbook of Mathematical Tables would include the methodologies to calculate these functions. I listed every single function, law, rule, etc. I could possibly imagine and more, it listed table after tables of calculated trig functions, but it did not show me HOW to calculate them myself.... more »
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