Re: Vector transpose!

*To*: mathgroup at smc.vnet.net*Subject*: [mg84472] Re: Vector transpose!*From*: Szabolcs Horvát <szhorvat at gmail.com>*Date*: Wed, 26 Dec 2007 05:12:48 -0500 (EST)*References*: <fkqpqi$jkf$1@smc.vnet.net>

mark wrote: > Hi all, > > How to take the transpose of a column vector. In other words, I have a > vector of 4 elements ( r={a,b,c,cd} ) and a 4x4 matrix M. I need to do > apply this operation: > Transpose[r].M.r > > Any ideas? > Just use r.M.r, Mathematica does not distinguish between row and column vectors. Szabolcs