Closed-form derivatives
#2
The I use this thread for giving the general formula for a superfunction \( \sigma \) of \( f \):
\( \sigma(x+1)=f(\sigma(x)) \)
\( \sigma'(x+1)=f'(\sigma(x))\sigma'(x) \)
\( \sigma'(x+n) = \sigma'(x)\prod_{k=0}^{n-1} f'(\sigma(x+k)) \)
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Messages In This Thread
Closed-form derivatives - by andydude - 08/23/2009, 01:12 AM
RE: Closed-form derivatives - by bo198214 - 08/23/2009, 10:01 AM
RE: Closed-form derivatives - by bo198214 - 08/23/2009, 10:14 AM

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