Home Reading Searching Subscribe Sponsors Statistics Posting Contact Spam Lists Links About Hosting Filtering Features Download Marketing Archives FAQ Blog From: Andrew Hill gmail.com> Subject: Re: Solving simple vector equation *newbie* Newsgroups: gmane.comp.lib.boost.ublas Date: Wednesday 29th February 2012 19:24:33 UTC (over 5 years ago) ```Can you provide a more specific example? I know nothing about how to use ublas. I'm looking for some simple code example. I don't have any idea how to turn what petros said into code using ublas. Adding to what petros said: 1) a, b, c are scalars 2) X, Y, Z are are 7-d column vectors 3) entries 3, 4, 5 of 7-d vectors have the most significance Understanding how to do this, will really set me up for more significant use of ublas going forward. I really appreciated any help I can get. Thanks! On Wed, Feb 29, 2012 at 10:40 AM, petros wrote: > this is equivalent to solving the system : > [ X Y Z ] * ( a b c ) T > for abc. > if X,Y,Z have length higher than 3 you need to do leas squares > (apply the regression formula) > hth > p- > > -----Original Message----- From: Andrew Hill Sent: Wednesday, February 29, > 2012 11:18 AM To: [email protected]/* */ Subject: [ublas] Solving simple > vector equation *newbie* > I'm 100% new to ublas.  Can you help me get started? > > I need to solve for a, b, c in the vector equation: > > R = a*X + b*Y + c*Z > > where R, X, Y, Z are known column vectors. > > How do I do this in ublas?  Will you create or point me to a simple > example of how to do this?  Details will really help me here as I > haven't used ublas before, but I need it for several projects going > forward. > > Thanks! > _______________________________________________ > ublas mailing list > [email protected]/* */ > http://lists.boost.org/mailman/listinfo.cgi/ublas > Sent to: [email protected]/* */ > > _______________________________________________ > ublas mailing list > [email protected]/* */ > http://lists.boost.org/mailman/listinfo.cgi/ublas > Sent to: [email protected]/* */ _______________________________________________ ublas mailing list [email protected]/* */ http://lists.boost.org/mailman/listinfo.cgi/ublas Sent to: [email protected]/* */```
CD: 3ms