Please reply-all so the mailing list stays in the loop. cumsum(1/(1:100)^2)
gives you the partial sums up through i=100. --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity. On July 24, 2015 10:30:09 AM PDT, Janh Anni <annij...@gmail.com> wrote: >Hello Jeff, > >Thank you so much for the suggestion, I searched cumsum as suggested >but >not sure it is what I had in mind. For instance if I had the infinite >series: [image: Inline image 1] > >and want to compute the sum of the, say, first 100 terms, how could I >use >cusum to do that? > >Thanks again, > >Janh > > >On Thu, Jul 23, 2015 at 11:51 PM, Jeff Newmiller ><jdnew...@dcn.davis.ca.us> >wrote: > >> ?cumsum >> >--------------------------------------------------------------------------- >> Jeff Newmiller The ..... ..... Go >Live... >> DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live >> Go... >> Live: OO#.. Dead: OO#.. >Playing >> Research Engineer (Solar/Batteries O.O#. #.O#. with >> /Software/Embedded Controllers) .OO#. .OO#. >rocks...1k >> >--------------------------------------------------------------------------- >> Sent from my phone. Please excuse my brevity. >> >> On July 23, 2015 8:23:39 PM PDT, Janh Anni <annij...@gmail.com> >wrote: >> >Dear All, >> > >> >Does anyone know of any R functions that compute partial sums of >> >series? >> > >> >Thanks in advance! >> > >> >Janh >> > >> > [[alternative HTML version deleted]] >> > >> >______________________________________________ >> >R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> >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 -- To UNSUBSCRIBE and more, see 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.