Re: Summation limits
- To: mathgroup at smc.vnet.net
- Subject: [mg46675] Re: Summation limits
- From: tinkham at ucalgary.ca (tinkham)
- Date: Fri, 27 Feb 2004 19:32:04 -0500 (EST)
- References: <c1lu5g$nse$1@smc.vnet.net> <c1mtnt$jjg$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Paul Abbott <paul at physics.uwa.edu.au> wrote in message > In article <>, tinkham at ucalgary.ca (tinkham) > wrote: > > I realize that I can just wrap the expression being summed in an > > If[i!=p, ...], but it would be nice if I could just put this test in > > the lower limit. > > There is a way to do this: use the Notation package to define your own > input notation that accepts a lower limit of the form, say i != 1 = p. > See > > http://physics.uwa.edu.au/pub/Mathematica/MathGroup/TestSumIterator.nb Thanks Paul, the Utilities`Notation` package worked beautifully for that. Doug > Cheers, > Paul