Re: Cross product with Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg15548] Re: Cross product with Mathematica
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Tue, 26 Jan 1999 13:44:33 -0500 (EST)
- References: <7813q6$p0m@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Sylvain,
Just use the definition that you know
cross[{a_,b_,c_},{A_,B_,C_}] := {-B c+b C, A c-a C, -A b+a B}
This is quicker than the built in function, which deals with all
dimensions.
Allan
---------------------
Allan Hayes
Mathematica Training and Consulting
www.haystack.demon.co.uk
hay at haystack.demon.co.uk
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smoisan at total.net wrote in message <7813q6$p0m at smc.vnet.net>...
>Hi,
>
>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 total.net
>The Metal Files <http://tropin.phy.ulaval.ca/smoisan/muzac.html>
>
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