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Re: Getting TraditionalForm to put in a multiplication sign.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg120803] Re: Getting TraditionalForm to put in a multiplication sign.
  • From: Frank K <fkampas at gmail.com>
  • Date: Thu, 11 Aug 2011 05:11:00 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <j1tnkl$pk8$1@smc.vnet.net>

On Aug 10, 6:47 am, Murray Eisenberg <mur... at math.umass.edu> wrote:
> Center dot is not at all uncommon in strictly mathematical context, and
> for any kind of multiplication-like operation.
>
> I've been doing math for far longer than 40 years, and I never
> encountered the * for multiplication of ordinary numbers before I first
> began programming with FORTRAN (my first computer language after
> assembly) in 1959.
>
> The * is, however, and long has been, used in mathematical discourse to
> denote an arbitrary operation in a group or monoid or whatever --
> precisely because it's NOT the usual multiplication sign for numbers.
>
> On 8/9/11 7:18 AM, DrMajorBob wrote:
>
>
>
>
>
>
>
>
>
> > I've seen all three multiplication signs for at least 40 years (center =
dot
> > rarely). Maybe your traditions are simply older than mine.
>
> > What's really NOT very useful, in my opinion, is no sign at all.
>
> > Bobby
>
> > On Mon, 08 Aug 2011 03:20:47 -0500, Murray Eisenberg
> > <mur... at math.umass.edu>  wrote:
>
> >> But * is not the traditional multiplication sign! It's computer geekes=
e
> >> for multiplication.
>
> >> The traditional (explicit) multiplication sign is either a center dot =
or
> >> else a small x-shaped cross.
>
> >> On 8/7/11 6:15 AM, Frank K wrote:
> >>> For purposes of exporting Mathematica expressions to other software,
> >>> it would be useful to have a multiplication sign (*) in
> >>> TraditionalForm instead of a space.  For example, x * y * (w + z)
> >>> instead of x y (w + z).  Anybody know how to do this?
>
> --
> Murray Eisenberg                     mur... at math.umas=
s.edu
> Mathematics & Statistics Dept.
> Lederle Graduate Research Tower      phone 413 549-1020 (H)
> University of Massachusetts                413 545-2859 (=
W)
> 710 North Pleasant Street            fax   413 545-1801
> Amherst, MA 01003-9305

I should have been more specific.  I'm trying to convert Mathematica
expressions to AMPL code.  AMPL uses * for multiplication.
ExportString[ expr, "Text"] works for polynomials but not for
functions.




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