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

----- Original Message -----
From: "Hermann Schmitt" <schmitther at>
To: mathgroup at
Subject: [mg61358] Re: [mg61350] Function, Command, Operator, Object...etc.

> Hello,
> these terms are useful for the programmer.
> 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"
> (
> Hermann Schmitt
> ----- Original Message -----
> From: "Steven T. Hatton" <hattons at>
To: mathgroup at
> To: <mathgroup at>
> 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
> > 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
> > aid the user in understanding the language?  Are these terms given
> > definitions as regards their meaning when used to discuss Mathematica?
> > so, where might I find these definitions?
> > --
> > "Philosophy is written in this grand book, The Universe. ... But the
> > cannot be understood unless one first learns to comprehend the
> > 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
> >

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