On 08-09-2014, at 06:55, Mohan Radhakrishnan <radhakrishnan.mo...@gmail.com> wrote:
> No. I was not looking for an answer to that question. I wasn't clear :-) I > already code using Octave and R to solve ML algorithms. > > I am trying to understand how R packages can help us to solve such > equations using LU decomposition etc. The question was about using R with > these math algorithms. > It’s still unclear what you want. Look at ?solve The solution to your simultaneous system of linear equations is x=0 and w=0. Berend > Mohan > > On Mon, Sep 8, 2014 at 12:31 AM, Rui Barradas <ruipbarra...@sapo.pt> wrote: > >> Hello, >> >> Inline. >> >> Em 07-09-2014 09:54, Mohan Radhakrishnan escreveu: >> >>> Hi, >>> I code R to parse data but not for solving equations. So this is >>> my first such problem. It is a programming puzzle. >>> >>> I have these two equations. >>> >>> 1) 4x - 3w = 0 >>> 2) 8x - 7w =0 >>> >>> I know the value of x and w for >>> >>> equation 1). x = 3 and w = 4 >>> equation 2). x = 7 and w = 8 >>> >> >> Why? Any of those equations defines a straight line, not a point. Those >> two points are just one of the infinitely many solutions. >> >> Your equations are equivalent to >> eq1) w = 4/3x >> eq2) w = 8/7x >> >> the equations of straight lines passing through the origin (no independent >> term). >> >> >>> I also know how to write more equations based on data available in the >>> puzzle. >>> >>> How do I solve a set of such equations ? I need to find out the values of >>> x >>> and w for each such equation. >>> >> >> There are packages to solve simultaneous equations but I've never used >> them. >> >> Hope this helps, >> >> Rui Barradas >> >>> >>> I know that here the equations are simple because the puzzle can be >>> simplfied. >>> >>> >>> Thanks, >>> Mohan >>> >>> [[alternative HTML version deleted]] >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide http://www.R-project.org/ >>> posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >>> >>> > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
