Re: Cross results?
- To: mathgroup at smc.vnet.net
- Subject: [mg63210] Re: Cross results?
- From: "Jean.Pellegri" <Jean.Pellegri at wanadoo.fr>
- Date: Mon, 19 Dec 2005 07:01:02 -0500 (EST)
- References: <do3l7r$o0b$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Bonjour
We have :
In[3] := Cross[{10 Sin[x],-10 Cos[x],5/2},{3/25 Sin[x],-3/25 Cos[x], 0}]
Out[3] := {3 Cos[x]/10 , 3 Sin[x]/10 , 0}
The result is OK
Cordialement
Jean Pellegri
"Virgil Stokes" <virgil.stokes at it.uu.se> a écrit dans le message de news:
do3l7r$o0b$1 at smc.vnet.net...
>I have the following
>
> x=.
> Cross[{10 Sin[x],-10 Cos[x],2.5},{0.12 Sin[x],-0.12 Cos[x], 0.0}]
>
> which gives,
>
> {0.3 Cos[x], 0.3 Sin[x], 0.Cos[x]Sin[x]}
>
> why does it not set the last term to 0.0?
>