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Re: Cross product with Mathematica

  • To: mathgroup at
  • Subject: [mg15548] Re: Cross product with Mathematica
  • From: "Allan Hayes" <hay at>
  • Date: Tue, 26 Jan 1999 13:44:33 -0500 (EST)
  • References: <7813q6$>
  • Sender: owner-wri-mathgroup at


Just use the definition that you know

cross[{a_,b_,c_},{A_,B_,C_}] :=  {-B c+b C, A c-a C, -A b+a B}

This is quicker than the built in function, which deals with all


Allan Hayes
Mathematica Training and Consulting
hay at
Voice: +44 (0)116 271 4198
Fax: +44 (0)870 164 0565

smoisan at wrote in message <7813q6$p0m at>...
>I wanted to do some calculations involving cross product over the
>weekend using Mathematica.  That's when I discovered there's no way of
>doing any cross product using this software, at least, not in the
>version we have at the univerity which is 2.2 for Solaris.  Is this
>possible in another version?
> Is there an add-on available somewhere so I can do cross product?  Any
>help would be appreciated.
>Thanks in advance.
>Sylvain Moisan
>mailto:smoisan at
>The Metal Files <>
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