Dot Product in Cylindrical Coordinates

*To*: mathgroup at smc.vnet.net*Subject*: [mg69211] Dot Product in Cylindrical Coordinates*From*: Sergio Miguel Terrazas Porras <sterraza at uacj.mx>*Date*: Fri, 1 Sep 2006 18:41:23 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

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