【图片】回复：【水星】xkcd 的漫画专贴【数学吧】

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回复：【水星】xkcd 的漫画专贴

Map Projections
"What's that? You think I don't like the Peters map because I'm uncomfortable with having my cultural assumptions challenged? Are you sure you're not ... ::puts on sunglasses:: ... projecting?"
xkcd.com/977/

本楼含有高级字体17楼2012-10-30 19:12

Set Theory
"Proof of Zermelo's well-ordering theorem given the Axiom of Choice: 1: Take S to be any set. 2: When I reach step three, if S hasn't managed to find a well-ordering relation for itself, I'll feed it into this wood chipper. 3: Hey, look, S is well-ordered."
xkcd.com/982/

本楼含有高级字体18楼2012-10-30 19:15

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A Bunch of Rocks
"I call Rule 34 on Wolfram's Rule 34."
xkcd.com/505/

本楼含有高级字体19楼2012-10-30 19:21

20楼2012-10-30 19:33

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3x9
"Handy exam trick: when you know the answer but not the correct derivation, derive blindly forward from the givens and backward from the answer, and join the chains once the equations start looking similar. Sometimes the graders don't notice the seam."
xkcd.com/759/

本楼含有高级字体22楼2012-10-30 19:41

Genetic Algorithms
"Just make sure you don't have it maximize instead of minimize."
xkcd.com/534/

本楼含有高级字体23楼2012-10-30 19:44

Words for Small Sets
"If things are too quiet, try asking a couple of friends whether "a couple" should always mean "two". As with the question of how many spaces should go after a period, it can turn acrimonious surprisingly fast unless all three of them agree."
xkcd.com/1070/

本楼含有高级字体24楼2012-10-30 19:48

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Visual Field
"I recently learned something that solved a mystery that had bugged me since childhood--why, when I looked at an analog clock, the hand would sometimes seem to take a couple seconds to start ticking. Google "stopped clock illusion"."
xkcd.com/1080/

本楼含有高级字体25楼2012-10-30 19:52

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Exoplanets
"Planets are turning out to be so common that to show all the planets in our galaxy, this chart would have to be nested in itself--with each planet replaced by a copy of the chart--at least three levels deep."
xkcd.com/1071/

本楼含有高级字体26楼2012-10-30 19:56