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Old 02-13-2012, 08:46 PM   #11
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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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Old 02-13-2012, 08:58 PM   #12
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lol
Thanks I was getting worried here.


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Old 02-13-2012, 09:03 PM   #13
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Originally Posted by Cambone View Post
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

Show your work!

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Old 02-13-2012, 09:17 PM   #14
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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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Old 02-13-2012, 09:25 PM   #15
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Originally Posted by DeafSmith View Post
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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Old 02-13-2012, 09:29 PM   #16
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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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Reason: MATH!
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Old 02-13-2012, 09:35 PM   #17
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Originally Posted by Cambone View Post
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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Old 02-13-2012, 09:42 PM   #18
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Originally Posted by Cambone View Post
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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Old 02-13-2012, 09:46 PM   #19
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Originally Posted by DeafSmith View Post
Just for you:
Find the integral of (t + 7t^2)^1/3 dt

Show your work!

Google may not know the answer, but Wolfram Alpha does.
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Old 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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