Re: What is -- Fractional integro-differentiation
- To: mathgroup at smc.vnet.net
- Subject: [mg39089] Re: What is -- Fractional integro-differentiation
- From: Amos Leffler <leffler at netaxs.com>
- Date: Wed, 29 Jan 2003 03:35:43 -0500 (EST)
- References: <askfus$l1q$1@smc.vnet.net> <atca8g$3kk$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
snoofly wrote: > > http://mathworld.wolfram.com/FractionalIntegral.html > http://mathworld.wolfram.com/FractionalDerivative.html > > "Ersek, Ted R" <ErsekTR at navair.navy.mil> wrote in message > news:askfus$l1q$1 at smc.vnet.net... > > Fractional integro-differentiation is discussed at > > http://functions.wolfram.com/ElementaryFunctions/Power/20/03/ > > > > I never herd of this. > > Is this where we compute something like D[f[x],{x,1/2}]. > > If yes, what is the definition of such a thing? > > I always assumed the (n) in D[f[x],{x,n}] had to be an Integer. > > > > ------------ > > Thanks, > > Ted Ersek > > > > Hi Snoofly, I am not quite sure of what you mean but cf Fractional Kinetics in Physics Today Nov. 2002 , p48ff. This might be in line with what you are interested in. aMOS lEFFLER