angle calculation from three points

[Sergei Steshenko]

--- On Mon, 7/13/09, noja <dominika.bienkowska at imp.ac.at> wrote:

> From: noja <dominika.bienkowska at imp.ac.at>
> Subject: angle calculation from three points
> To: help-octave at octave.org
> Date: Monday, July 13, 2009, 8:13 AM
> 
> Hello!
> I have been struggling with this thing for quite a bit, so
> maybe somebody
> could help me..
> I have x y positions of moving point and I'm trying to get
> how the angle
> changes. I was trying to use the the formula for acos but
> I'm not getting
> anywhere. Could anybody help me? 
> thanx!!
> -- 
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> Sent from the Octave - General mailing list archive at
> Nabble.com.
> 


First post your code.

Regards,
  Sergei.