Hi Steve, Give RSeek.org a try ...
http://rseek.org/?q=show+area+under+curve There a loads of examples and blogs on this topic at RSeek.org. Under the 'Support' tab there is an exchange between two USM folk on this very topic. Cheers, Ben On Nov 27, 2015, at 7:52 AM, Steven Stoline <sstol...@gmail.com> wrote: > Dear All: > > I am trying to explain to my students how to calculate the definite > integral using the Riemann sum. Can someone help me to graph the area under > the curve of the function, showing the curve as well as the rectangles > between 0 and 4.. > > *f(x) = x^3 - 2*x * > > over the interval [0 , 4] > > > > with many thanks > steve > > -- > Steven M. Stoline > 1123 Forest Avenue > Portland, ME 04112 > sstol...@gmail.com > > [[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. Ben Tupper Bigelow Laboratory for Ocean Sciences 60 Bigelow Drive, P.O. Box 380 East Boothbay, Maine 04544 http://www.bigelow.org ______________________________________________ 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.