### Volume 3, Number 47A  -  November 1998 Discussions

 ``` 25 November 1998 Vol. 3, No. 47A THE MATH FORUM INTERNET NEWS - OCTOBER 1998 DISCUSSIONS This special issue of the Math Forum's weekly newsletter highlights interesting conversations taking place during November of 1998 on Internet math discussion groups. For a full list of these groups, with links to topics covered and information on how to subscribe, see: http://mathforum.org/discussions/ Replies to individual discussions should be addressed to the appropriate group rather than to the newsletter editor. ______________________________ + ______________________________ NOVEMBER SUGGESTIONS: GEOMETRY-PRE-COLLEGE (discussion group archive at: http://mathforum.org/epigone/geometry-pre-college/) November conversations about two-column proofs spanned a number of threads: Two-column Proof "I'm working on two-column proofs and I understand how to do it, but it is hard having to remember all the theorems, postulates, etc. and apply them to the future proofs... I'm home schooling so a teacher isn't available." - TiGER http://mathforum.org/epigone/geometry-pre-college/rivaxcron/ http://mathforum.org/epigone/geometry-pre-college/toljonzherm/ http://mathforum.org/epigone/geometry-pre-college/smouhinsmoo/ http://mathforum.org/epigone/geometry-pre-college/crunsendtu/ For more, search the discussion group for two column proof. http://mathforum.org/discussions/epi-search/geom.pre-college.html ______________________________ + ______________________________ GEOMETRY-PUZZLES (discussion group archive at: http://mathforum.org/epigone/geometry-puzzles/) A General Theory of Puzzles? "Can anybody point me to some references for theoretical treatments of puzzle games in general? I am particularly interested in ways of classifying puzzles." - Chris Campbell http://mathforum.org/epigone/geometry-puzzles/touskandsnul/ --- + --- Areas = to Perimeters "How many right triangles, with integral sides, have areas equal to their perimeters? How many rectangles with integral sides have this same property? Is there a generally accepted name for any geometric figure which has this property?" - Richard Beeler http://mathforum.org/epigone/geometry-puzzles/quilplargex/ ______________________________ + ______________________________ GEOMETRY-RESEARCH (discussion group archive at: http://mathforum.org/epigone/geometry-research/) A Theorem concerning the Trisectors of a Triangle "While investigating the Morley triangle, I came upon this theorem which some might find interesting. If the Angular trisectors of a triangle are produced to the Circumcircle, then the Chords of adjacent trisectors form an Equilateral triangle. It has been suggested that this result might follow from Morley's theorem. So far, I have been unable to make this connection. Any thoughts?" - Den Roussel http://mathforum.org/epigone/geometry-research/jahclumyax/ ______________________________ + ______________________________ HISTORIA-MATEMATICA (discussion group archive at: http://mathforum.org/epigone/historia_matematica/) Is Greek mathematics the *real* thing? "'The Greeks were the first mathematicians who are still 'real' to us to-day. Oriental mathematics may be an interesting curiosity, but Greek mathematics is the real thing. The Greeks first spoke a language which modern mathematicians can understand...' [Hardy] Since Hardy wrote this passage almost 60 years ago, right now I am naively wondering whether this passage has passed the test of time." - Julio Gonzalez Cabillon http://mathforum.org/epigone/historia_matematica/fringblingshu/ ______________________________ + ______________________________ MATH-EDU (discussion group archive at: http://mathforum.org/epigone/mathedu/) Learning disabilities "Is anyone doing research on specifically math-related learning problems?" - Sandra Z. Keith http://mathforum.org/epigone/mathedu/thahgeltwimp/ ______________________________ + ______________________________ We hope you will find these selections useful, and that you will browse and participate in the discussion group(s) of your choice. CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/pow/ Internet Resources http://mathforum.org/~steve/ Teacher2Teacher http://mathforum.org/t2t/ Discussion Groups http://mathforum.org/discussions/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors ```