Re: D[Xc, X] = Nonsense ?
- To: mathgroup@smc.vnet.net
- Subject: [mg10542] Re: D[Xc, X] = Nonsense ?
- From: Allan Hayes <hay@haystack.demon.co.uk>
- Date: Tue, 20 Jan 1998 16:53:48 -0500
- References: <69n9hr$7vr@smc.vnet.net>
Kowald wrote: > > Hello, > > I'm using Mathematica 3 on a NT4 machine and I tried to use the new nice > subscripts for naming my variables. > I have a variable Xc (that's X subscript c) and a variable X which are > non-identical. If I now try > D[Xc ,X] I get Subscript(1,0) [X,c] instead of zero. If I type > D[Xc ,Y] everything is okay. > So somehow Mathematica gets confused about the subscript. Does this mean > I cannot have variables whose only difference is a subscript ? Or > what else is going on ? > > Many thanks Axel, You need to use Utilities`Notation` - details in following notebook. -- Allan Hayes Training and Consulting Leicester, UK hay@haystack.demon.co.uk http://www.haystack.demon.co.uk voice: +44 (0)116 271 4198 fax: +44 (0)116 271 8642 (*********************************************************************** Mathematica-Compatible Notebook This notebook can be used on any computer system with Mathematica 3.0, MathReader 3.0, or any compatible application. 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