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# So, you want to test me? watch

1. (Original post by Ollie)
http://www.kkwavefront.com/media/alb...ss0178_kkw.jpg

how can you resist?!
Easily!
2. (Original post by corey)
Anyway, if anyone wants to ask me on;
Philosophy of Religion, Theory of Knowledge, Descartes, Economics or Politics go for it!
Why on earth do you support Labour?
3. (Original post by fishpaste)
fun > useful.

I know I'm better off knowing that i! exists, as well as fractional derivatives.

the 1/3rd derivative of f(x), what does that mean? if you do it 3 times, will you get f'(x)?
4. (Original post by elpaw)

the 1/3rd derivative of f(x), what does that mean? if you do it 3 times, will you get f'(x)?
The best answer I can think of is the one you gave,1/3rd derivative of x is the operater which when applied 3 times gives you the rate at which f(x) is changing with respect to x.
5. (Original post by fishpaste)
The best answer I can think of is the one you gave,1/3rd derivative of x is the operater which when applied 3 times gives you the rate at which f(x) is changing with respect to x.
See http://mathworld.wolfram.com/FractionalDerivative.html and http://mathworld.wolfram.com/FractionalCalculus.html, althought they're not exactly that accessible. I'm sure a Google search will yield something more accessible...

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