Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2006
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Dot Product in Cylindrical Coordinates

  • To: mathgroup at smc.vnet.net
  • Subject: [mg69230] Re: Dot Product in Cylindrical Coordinates
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Sun, 3 Sep 2006 01:39:30 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <edadqd$pgc$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Sergio Miguel Terrazas Porras wrote:
> Hello group:
>  
> When I calculate the dot product of vectors {1,Pi/4,0} and {2,0,1} in
> Cylindrical Coordinates Mathematica 5.1 returns the result Sqrt[2], when the
> result should be 2.
> What is going on ?
> Thanks
> Sergio Terrazas
> 
Hi Sergio,

Unfortunately I don't have at hand version 5.1 but the dot product is 
correct with version 5.2 for Windows:

Needs["Calculus`VectorAnalysis`"]
SetCoordinates[Cylindrical];
{1, Pi/4, 0} . {2, 0, 1}

--> 2

Regards,
Jean-Marc


  • Prev by Date: Array
  • Next by Date: RE: Dot Product in Cylindrical Coordinates
  • Previous by thread: Dot Product in Cylindrical Coordinates
  • Next by thread: RE: Dot Product in Cylindrical Coordinates