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Re: The orde of product

  • To: mathgroup at smc.vnet.net
  • Subject: [mg123417] Re: The orde of product
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Tue, 6 Dec 2011 03:13:59 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201112051013.FAA04794@smc.vnet.net>

Use NonCommutativeMultiply ( ** )


Bob Hanlon

On Mon, Dec 5, 2011 at 5:13 AM, =E9=81=93 =E5=8E=9A <shlwell1988 at gmail.com> wrote:
> How can I do that a*b is unequal to b*a in Mathematica 7?
> Thank you.
>



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