Does anyone know how you would go about finding the recursive formula when it is a fraction. E.g. Find recursive formula for 1/(x^3+1)^w (dx)
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Hello, Originally Posted by hats_06 Does anyone know how you would go about finding the recursive formula when it is a fraction. E.g. Find recursive formula for 1/(x^3+1)^w (dx) Integration by parts most of the time. Which is the case here. Write and remember that after that, it's just algebra and you're done
can you do it writing it like this? (x^3+1)^-w (dx) sorry man i havent done recursions for a while...does that help? EDIT: beaten to it...i was nowhere near as much help.
Hey moo thanks for your help! I had gotten it right up until this point: Write and remember that after that, it's just algebra and you're done I dont still quite understand why
Oh wait i understand!! Thanks so much once again!
Heey its me again...I got slightly confused again when i evaluated it...but i ended up with this: Iw = 3wIw - 3wIw+1 + (x)/(x^3+1)^w Does that sound right?
Originally Posted by hats_06 Heey its me again...I got slightly confused again when i evaluated it...but i ended up with this: Iw = 3wIw - 3wIw+1 + (x)/(x^3+1)^w Does that sound right? Perfect Now, write in terms of (that's not much, it's just for aesthetics ^^)
So just: Iw+1 = Iw - (1/3w)Iw + (x)/3w(x^3+1)^w Is that it?
Yes it is or more precisely (1-1/3w)I_w
Thanks so much my genius friend!
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