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)
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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.