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02-13-2012, 08:46 PM   #11
Cambone
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I came in here looking for a math problem. I feel as if I have been tricked.

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02-13-2012, 08:58 PM   #12
iaefebs
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Quote:
 Originally Posted by motobrewer lol
Thanks I was getting worried here.

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02-13-2012, 09:03 PM   #13
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Quote:
 Originally Posted by Cambone I came in here looking for a math problem. I feel as if I have been tricked.
Just for you:
Find the integral of (t + 7t^2)^1/3 dt

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02-13-2012, 09:17 PM   #14
iaefebs
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Quote:
 Originally Posted by DeafSmith Just for you: Find the integral of (t + 7t^2)^1/3 dt Show your work!
Even Google seems stumped on that one
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02-13-2012, 09:25 PM   #15
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Quote:
 Originally Posted by DeafSmith Just for you: Find the integral of (t + 7t^2)^1/3 dt Show your work!
Nerd sniping. I was ready to do up a LaTex document and everything.

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02-13-2012, 09:29 PM   #16
Cambone
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Quote:
 Originally Posted by iaefebs Even Google seems stumped on that one
You're going to need more than google for this one...

Matlab wont even chew through something like, symbolically at least.

*EDIT* Just checked, matlab can't do it.
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Last edited by Cambone; 02-13-2012 at 09:30 PM. Reason: MATH!

02-13-2012, 09:35 PM   #17
D0ug
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Quote:
 Originally Posted by Cambone You're going to need more than google for this one... Matlab wont even chew through something like, symbolically at least. *EDIT* Just checked, matlab can't do it.
I'm sure the solution must be in one of those massive tables generated by the Russians on one of their math farms.
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02-13-2012, 09:42 PM   #18
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Quote:
 Originally Posted by Cambone You're going to need more than google for this one... Matlab wont even chew through something like, symbolically at least. *EDIT* Just checked, matlab can't do it.
I suppose I should admit that I didn't pick that one at random. Found it in Richard Feynman's "Tips on Physics", page22: "...for example, (t + 7t^2)^1/3 is not possible to integrate in an easy fashion,..."

Feynman doesn't give the solution, and I certainly don't know it.
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02-13-2012, 09:46 PM   #19
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Quote:
 Originally Posted by DeafSmith Just for you: Find the integral of (t + 7t^2)^1/3 dt Show your work!
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02-13-2012, 09:49 PM   #20
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The indefinite integral of (t + 7t^2)^1/3 dt = 3t(7t+1)^1/3((7t+1)^1/3*(14t+1)-2F1(1/3,2/3;4/3;-7t))/(70*(7t+1)^1/3) + constant

where 2F1(a, b, c; x) is the hypergeometric function.

edit: Weirdboy, that's a very interesting site that I swear I have never heard of

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