RE: listing user defined, independent variables
- To: mathgroup at smc.vnet.net
- Subject: [mg96796] RE: [mg96752] listing user defined, independent variables
- From: "Jose Luis Gomez" <jose.luis.gomez at itesm.mx>
- Date: Wed, 25 Feb 2009 04:03:11 -0500 (EST)
- References: <200902241043.FAA23474@smc.vnet.net>
Paul The Mathematica command ValueQ[] might be useful for you. For example if you start a new Mathematica and define: a=b+c After that, if you evaluate ValueQ[a] you obtain True, while the evaluation of ValueQ[b] gives False. HTH Jose Mexico -----Mensaje original----- De: Paul Ellsmore [mailto:paul.ellsmore at nanion.co.uk] Enviado el: Martes, 24 de Febrero de 2009 04:44 Para: mathgroup at smc.vnet.net Asunto: [mg96752] listing user defined, independent variables Hi, I have a notebook in which there are over 1300 variables (symbols) defined. The vast majority of these are dependent variables. I can get a list of them all with Names["Global`*"], but what I really want is a list of only the independent variables. Is there any obvious way to do this? Mathematica must "know" which variables are functions of other symbols, so I was hoping that there would be an "attribute" of a dependent variable that I could use as a filter on Names[]. Any thoughts? I am using V5.1. Cheers, Paul Dr. Paul A. Ellsmore Nanion Limited Oxford Centre for Innovation Mill Street Oxford United Kingdom OX2 0JX Tel: +44 (0) 1865 811175 Fax: +44 (0) 1865 248594
- References:
- listing user defined, independent variables
- From: "Paul Ellsmore" <paul.ellsmore@nanion.co.uk>
- listing user defined, independent variables