Re: Vector problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg115941] Re: Vector problem*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Wed, 26 Jan 2011 05:07:37 -0500 (EST)

This doesn't at all sound like a Mathematica problem, but rather like a mathematics problem. On 1/25/2011 4:19 AM, Mark Perrin wrote: > I'm having trouble formulating a problem in Mathematica. > > If I have two 2D vectors, u and v that are the known projections of a third unknown 2D vector z, how do I determine z? > > My word problem (I think) is find the solution to: Projection[z,u] == u&& Projection [z,v] == v > > Any help in starting this problem would be much appreciated. > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305