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



 
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Old 02-13-2012, 09:03 PM   #13
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Quote:
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
iaefebs
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Quote:
Originally Posted by DeafSmith View Post
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
Cambone
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Quote:
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
Cambone
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Quote:
Originally Posted by iaefebs View Post
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
D0ug
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Quote:
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
DeafSmith
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Quote:
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
weirdboy
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Quote:
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
AllHopAbandon
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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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