Re: fractional derivative of 1/(log x)?

*To*: mathgroup at smc.vnet.net*Subject*: [mg91335] Re: fractional derivative of 1/(log x)?*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Sat, 16 Aug 2008 05:54:00 -0400 (EDT)*Organization*: The Open University, Milton Keynes, UK*References*: <g83nat$aru$1@smc.vnet.net>

Michael O'H wrote: > Hello, I'd be very grateful if someone could help me with the fractional > derivative (order t) of 1/(log x), where t can range from -2 and -0.5. Since you have already posted a similar question on this newsgroup few days ago [1] and also you are asking the same ambiguous question on MathForum [2], it is hard to tell what kind of help you are seeking? (Note that comp.soft-sys.math.mathematica is a newsgroup dedicated to the computer algebra system (CAS) Mathematica.) So are you seeking help about . Mathematica . the concepts involved in fractional calculus . some specificities of the function 1/log(x) Also, . What about the previous replies you got? . Have you investigated them? . Did you try anything by yourself? . ... At any rate, it would be useful to restate your query in a more precise way, to show your work and/or attempts, describe any difficulties faced, give relevant background information, ... Regards, - Jean-Marc [1] "Re: fractional derivative (order t) of (Log[x])^n and Log[Log[x]]" http://forums.wolfram.com/mathgroup/archive/2008/Aug/msg00332.html [2] _The Math Forum @ Drexel_ http://mathforum.org/kb/thread.jspa?threadID=1786274&tstart=0