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MathGroup Archive 2003

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Re: Using Symbols in Functions

  • To: mathgroup at
  • Subject: [mg43869] Re: Using Symbols in Functions
  • From: Jens-Peer Kuska <kuska at>
  • Date: Thu, 9 Oct 2003 01:54:59 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <bm0jp3$pr2$>
  • Reply-to: kuska at
  • Sender: owner-wri-mathgroup at


you can use


or you can edit the


file. In this file you will find a line like

0x2191		\[UpArrow]		($&UpArrow;$   $\uparrow$)		Infix		650		None		2		2

and you must change this line to 

0x2191		\[UpArrow]		($&UpArrow;$   $\uparrow$)		Letter		650		None		2		2

and similar for the \[DownArrow] line.


Nicholas Konidaris wrote:
> Dear Mathematica Users -
>         I am interested in using symbols* in my mathematica routines.  For
> example, I would like to use the \[UpArrow] and \[DownArrow] symbols as
> parameters to functions:
> f[\[UpArrow]] := 1
> f[\[DownArrow]] := 0
>         But Mathematica raises a syntax error.  Is it possible to use these
> symbols* as I tried above?  If so, how?
> Thank you for your help.
> n
> * I realize that symbol probably has many meanings, in the context of the
> Mathematica interpreter.  I apologize if I'm not using the correct
> nomenclature here.

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