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euclidean and non-euclidean geometry

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http://images.amazon.com/images/P/0521276357.01.LZZZZZZZ.jpg

― bell_labs, Friday, 4 May 2007 01:57 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:00 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:00 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:01 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:02 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:03 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:03 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:04 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:05 (eighteen years ago)

http://www.cut-the-knot.org/ctk/Tesseract.shtml

― am0n, Friday, 4 May 2007 02:05 (eighteen years ago)

i like this stuff! even though i cannot really remember how to try to understand it

― rrrobyn, Friday, 4 May 2007 02:06 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:06 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:08 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:09 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:13 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:14 (eighteen years ago)

http://www.netherreal.de/gallery/coulthart/images/rlyeh1.jpg

― bell_labs, Friday, 4 May 2007 02:15 (eighteen years ago)

http://www.theiff.org/images/hyperbolics/01.JPG

― bell_labs, Friday, 4 May 2007 02:16 (eighteen years ago)

http://www-groups.dcs.st-andrews.ac.uk/~history/Diagrams/Pseudosphere.gif

― bell_labs, Friday, 4 May 2007 02:18 (eighteen years ago)

http://whatihaveread.net/i/1070.jpg

― bell_labs, Friday, 4 May 2007 02:19 (eighteen years ago)

http://www.math.utoronto.ca/gif/polytope.gif

― bell_labs, Friday, 4 May 2007 02:20 (eighteen years ago)

http://cache.eb.com/eb/image?id=70823&rendTypeId=4

― bell_labs, Friday, 4 May 2007 02:21 (eighteen years ago)

http://www.goldenmuseum.com/0905014.jpg

― bell_labs, Friday, 4 May 2007 02:22 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:23 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:25 (eighteen years ago)

http://www.goldenmuseum.com/1701001.jpg

― rrrobyn, Friday, 4 May 2007 02:28 (eighteen years ago)

http://strata.geol.sc.edu/images/FFST.gifhttp://strata.geol.sc.edu/images/LST.gifhttp://strata.geol.sc.edu/images/TST.gifhttp://strata.geol.sc.edu/images/HST.gifhttp://strata.geol.sc.edu/images/FFST.gifhttp://strata.geol.sc.edu/images/LST.gifhttp://strata.geol.sc.edu/images/TST.gifhttp://strata.geol.sc.edu/images/HST.gifhttp://strata.geol.sc.edu/images/FFST.gifhttp://strata.geol.sc.edu/images/LST.gifhttp://strata.geol.sc.edu/images/TST.gifhttp://strata.geol.sc.edu/images/HST.gifhttp://strata.geol.sc.edu/images/FFST.gifhttp://strata.geol.sc.edu/images/LST.gifhttp://strata.geol.sc.edu/images/TST.gifhttp://strata.geol.sc.edu/images/HST.gif

― bell_labs, Friday, 4 May 2007 02:30 (eighteen years ago)

http://www.educational-freeware.com/images/geogebra/geogebra.gif

― sanskrit, Friday, 4 May 2007 02:33 (eighteen years ago)

http://www.vivante.it/com@net/crop_circle/corpcircle1c.jpg

― sanskrit, Friday, 4 May 2007 02:33 (eighteen years ago)

http://wwwphy.princeton.edu/~steinh/pinch.jpg

― bell_labs, Friday, 4 May 2007 02:35 (eighteen years ago)

http://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gifhttp://cosmicweb.uchicago.edu/images/x.gif

― bell_labs, Friday, 4 May 2007 02:36 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:40 (eighteen years ago)

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― bell_labs, Friday, 4 May 2007 02:41 (eighteen years ago)

http://www.nasa.gov/images/content/144935main_image_feature_532_ys_4.jpg

― bell_labs, Friday, 4 May 2007 02:46 (eighteen years ago)

http://public.web.cern.ch/Public/Objects/Chapters/AboutCERN/HowStudyPrtcles/CERNAccelComplex/Accelerators.gif

― bell_labs, Friday, 4 May 2007 02:48 (eighteen years ago)

my dad does these dover books for fun ... we have a copy of "geometry, relativity + the fourth dimension" at home.

this was my thermodynamics textbook from college (i took thermo with kittel, oooh look at me)

http://omnis.if.ufrj.br/~monica/TFE20062/Kittel.jpg

― moonship journey to baja, Friday, 4 May 2007 03:14 (eighteen years ago)

here's a classic, highly recommended to anyone who thinks they're hard (ur gonna get raped by maths)

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― moonship journey to baja, Friday, 4 May 2007 03:17 (eighteen years ago)

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― moonship journey to baja, Friday, 4 May 2007 03:21 (eighteen years ago)

http://www.faculty.fairfield.edu/jmac/sj/sacflaw/esclim3.GIF
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http://www.dartmouth.edu/%7Ematc/math5.pattern/Coxeter.gif

― ian, Friday, 4 May 2007 03:25 (eighteen years ago)

i did this one in my sixth year (only upper division math course i did)

http://www.etsu.edu/math/gardner/5510/conway2.jpg

― moonship journey to baja, Friday, 4 May 2007 03:31 (eighteen years ago)

http://www.championtrees.org/yarrow/images/unpackdonut.gif

― rrrobyn, Friday, 4 May 2007 04:19 (eighteen years ago)

oh, that's nice. it's like a slinky wrapped in tissue paper, right?

― moonship journey to baja, Friday, 4 May 2007 04:29 (eighteen years ago)

http://mathworld.wolfram.com/images/eps-gif/RomanBoy_1000.gif

― Curt1s Stephens, Friday, 4 May 2007 04:30 (eighteen years ago)

this thread makes me want to become a math major and study topology hardcore.

― Curt1s Stephens, Friday, 4 May 2007 04:31 (eighteen years ago)

Functions of One Complex Variable is a classic! I read that on a plane trip across the US once. Most fun math grad text ever!

― libcrypt, Friday, 4 May 2007 05:48 (eighteen years ago)

??? really ???

i don't remember being crazy about it - my gold standard for textbooks was david j griffiths undergrad physics books (electrodynamics / quantum) ... but i am sort of a wuss ... my attention span totally tapers off at the MS level.

― moonship journey to baja, Friday, 4 May 2007 05:51 (eighteen years ago)

http://map.gsfc.nasa.gov/m_ig/990529/990529b.jpg

― petey_carnum, Friday, 4 May 2007 13:36 (eighteen years ago)

http://mathworld.wolfram.com/images/eps-gif/WolframSequence52_1000.gif

― petey_carnum, Friday, 4 May 2007 13:38 (eighteen years ago)

http://www.auscillate.com/images/post_heads/automata.jpg

― petey_carnum, Friday, 4 May 2007 13:41 (eighteen years ago)

http://upload.wikimedia.org/wikipedia/en/d/d7/8-cell.gif

― elmo argonaut, Friday, 4 May 2007 13:43 (eighteen years ago)

??? really ???

Compared to what I'd been studying at the time (mostly mathematical logic), it was a relief to be able to read a math text without having to spend a day trying to understand a single page.

― libcrypt, Friday, 4 May 2007 14:40 (eighteen years ago)

This one was particularly gruesome:

http://images.barnesandnoble.com/images/6320000/6320050.gif

I spent a semester on a seminar that covered like 1/20th of that book, and I understood almost nothing. Best part, though: The romanian prof at one point defined a function, pp(). Then she started talking about cardinals lambda such that pp(lambda) > lambda. Giggles ensued.

― libcrypt, Friday, 4 May 2007 14:43 (eighteen years ago)

five years pass...

starting a summer course on euclidean/non-euclidean geometry tomorrow! so stoked

― flopson, Tuesday, 30 April 2013 21:09 (twelve years ago)

one month passes...

what have you learnt so far

― the late great, Wednesday, 12 June 2013 04:58 (twelve years ago)

there actually wasn't much traditional non-euclidean (spherical, hyperbolic) geometry in the course, it was more like Euclid's Elements-ey stuff, then group theory, then doing things like using graph theory to classify platonic solids using planar graphs. course kind of veered off hard into topology the last couple weeks, this is prob the coolest thing we saw, called the hopf fibration. it's like a 3 sphere that's locally a 2 sphere at every point. can be expressed in a really mindblowing way in terms of quaternions, prof's notes were kind of sloppy but if ur interested i could explain it to u

http://upload.wikimedia.org/wikipedia/commons/b/b9/Hopf_Fibration.png

― flopson, Wednesday, 12 June 2013 15:51 (twelve years ago)


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