Google is your friend "R Runge kutta" [1][2] This actually is not the "do my research for me" list... when you have a specific problem with R, this is a good place to get help by providing a reproducible example. You are expected to have some reasonable familiarity with the theory underlying the task you are working on and with basic R syntax so we can focus on where R is not doing what you want.
Why are you interested in Euler AND Runge-Kutta? Why aren't you just interested in solving the DEs to within some uncertainty? [1] https://www.jstatsoft.org/article/view/v033i09/v033i09.pdf [2] https://cran.r-project.org/web/views/DifferentialEquations.html -- Sent from my phone. Please excuse my brevity. On November 7, 2016 9:26:12 AM PST, Tom Mosca <t...@vims.edu> wrote: >Can someone help me with R code to perform approximations to second >order differential equations and systems of first order differential >equations using Euler's method and Runge-Kutta? I am not a student and >this is not for a test or graded assignment. > >Examples (unrelated to each other): > >h = 0.1 > >1. 3(t^2)y'' - 5ty' + 5y = 0 > y(1) = 0, y'(1) = 2/3 > >2. Lotka-Volterra > x' = x(3-y) > y' = y(x-3) > > > > > [[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.
