Dot Product in Cylindrical Coordinates

*To*: mathgroup at smc.vnet.net*Subject*: [mg69364] Dot Product in Cylindrical Coordinates*From*: Sergio Miguel Terrazas Porras <sterraza at uacj.mx>*Date*: Sat, 9 Sep 2006 03:26:41 -0400 (EDT)

Thanks to all who replied, especially to David Park, Andrzej Koslowski and Jean-Mark Gulliet. As Jean-Mark pointed out, it works correctly in version 5.2! Yes, I had loaded the Vector Analysis package, set coordinates to cylindrical, and the components of the vectors were the cylindrical coordinates. In version 5.1, DotProduct[{1,Pi/4,0},{2,0,1}] Out: Sqrt[2] In version 5.2, DotProduct[{1,Pi/4,0},{2,0,1}] Out: 2 It seems Wolfram made some changes in this respect. Thanks again Sergio Terrazas