Fw: Function, Command, Operator, Object...etc.

*To*: mathgroup at smc.vnet.net*Subject*: [mg61358] Fw: [mg61350] Function, Command, Operator, Object...etc.*From*: "Hermann Schmitt" <schmitther at t-online.de>*Date*: Mon, 17 Oct 2005 02:29:24 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

----- Original Message ----- From: "Hermann Schmitt" <schmitther at t-online.de> To: mathgroup at smc.vnet.net Subject: [mg61358] Re: [mg61350] Function, Command, Operator, Object...etc. > Hello, > these terms are useful for the programmer. > E.g.you can use objects with heads you chose and define functions for this > objects. > Examples for this you can find in my "oo system for Mathemtica" > (www.schmitther.de) > Hermann Schmitt > ----- Original Message ----- > From: "Steven T. Hatton" <hattons at globalsymmetry.com> To: mathgroup at smc.vnet.net > To: <mathgroup at smc.vnet.net> > Sent: Sunday, October 16, 2005 6:18 AM > Subject: [mg61358] [mg61350] Function, Command, Operator, Object...etc. > > > > Section 2.1.2 of The Mathematica Book for 5.2 discusses different ways to > > interpret parts of expressions. The examples given are "Function, > Command, > > Operator, Head and Object type." Do these terms have any meaning within > > the Mathematica language, or are these purely conceptual ideas intended to > > aid the user in understanding the language? Are these terms given formal > > definitions as regards their meaning when used to discuss Mathematica? If > > so, where might I find these definitions? > > -- > > "Philosophy is written in this grand book, The Universe. ... But the book > > cannot be understood unless one first learns to comprehend the language... > > in which it is written. It is written in the language of mathematics, ...; > > without which wanders about in a dark labyrinth." The Lion of Gaul > > >