I just got this via email and don't know the copyright or the origin of this. If someone knows whether I should give credit to someone, please let me know. But it's too funny not to blog.

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via Joi Ito, who received this in his e-mail: Read More

Hehe, Math Joke. Read More

Pretty funny math joke courtesy of Joi Ito Had an interesting day today filled with fun classes shortened by advisory meetings, as well as the ever so enjoyable event of a student lieing directly to my face. Caught the student... Read More

Pretty funny math joke courtesy of Joi Ito Had an interesting day today filled with fun classes shortened by advisory meetings, as well as the ever so enjoyable event of a student lieing directly to my face. Caught the student... Read More

( Via Joi Ito's Web )... Read More

Not only a good math joke, but evidence of some nice lateral thinking. Read More

Not sure, but it might have been the work of Mohammad Al-Tahan

Math problems? Call 1-800-[(10x)(13i)2]-[sin(xy)/2.362x].

hehe - would it be as funny if the supposed student had been male I wonder?

Still, ;)

It should be the limit as x approaches 8 from above, i.e.

lim_{x->8+}{1/(x-8)}

because the limit as you approach 8 from below written lim_{x->8-} would be negative infinity, e.g. 1/(7.99999-8) = -100000

or absolute value of 1/x-8

This reminds me of my time in school. Always nodding my head that I understood something, when I actually didn't have a clue. It's kind of sad.

Jonathan's right, and it would be funnier if this didn't have such an obvious error.

A joke that is funny should not be over analysed. Just smile or laugh.

once in a while, my hs calc teacher would tell us math jokes and a friend would always laugh twice. once after the joke, then again when he got it.

well, i like the joke because it relates to me now. In my tenth grade class we are learning about this and graphing on imaginery lines.

I am going to tell all of my freinds this because it is a great joke.

Ahh... Next question please.

i like math relly much!

Me do math gut. ♂+♀=♥

i saw this story on the homepage of a professor of economics at an american university. I don't recall neither name nor university, only that it was a lady and (maybe) an italian or spanish-sounding name. she is the one to be credited. I laughed for hours. thanks to your post I rediscovered it.

I disagree with Bill. If a joke is really funny, it should withstand some scrutiny. The point is that the joke could be very easily written with a set-up that is true. One could even write the absolute value of (1/x-8) and it would be truthful. Just because it doesn't start with an error that would be obvious to an elementary school student, like 2+2=5, doesn't mean that it's not worth cleaning up the joke.

Just my $0.02

This is incorrect, lim_x->8(1/(x-8)) is undefned.