Thanks, but the issue is not defining the operator. The issue is Mathematica's implicit assumption of a Times (*) when there's a space between variables. The NonCommutativeMultiply (**) already exists.
So when I input x y//FullForm I want Mathematica to return NonCommutativeMultiply[x,y] instead of Times[x,y]
Of course I want the explicit Times (*) to still work the same as before, x*y//FullForm yielding Times[x,y]
-----Original Message----- From: James Stein Sent: Friday, November 09, 2012 11:06 PM Subject: Re: Implicit Times
Read this Mathematica reference on "operators without built-in meanings". I assume you could define, e.g., 'CircleTimes' to return whatever function (including non-commutative multiply) you wish.
On Thu, Nov 8, 2012 at 4:00 PM, Dave Snead <email@example.com> wrote:
> Hi all, > > Mathematica assumes Times (*) when two expressions are > juxtaposed with no explicit intervening binary operator > (ex., x y is interpreted as x*y). > I want to change this behavior so it assumes a > NonCommutativeMultiply (**) instead. > Is this possible? > > Thanks in advance, > Dave Snead > > >