Dear George, Perhaps redefining Fn as Fun2 <- function(x) ifelse(x==0,1,sin(x)/x)
could help. Now, for the symbolic part (I'm not sure if understood correctly), try ?curve as follows: curve(Fun2(x),-10,10) HTH, Jorge On Wed, Oct 29, 2008 at 12:21 AM, KARAVASILIS GEORGE <[EMAIL PROTECTED]>wrote: > Hello, R subscribers. > I would like to define a function like this one: > Fun <- function(x) sin(x)/x > with value 1 at x=0. How can I do that? > Is there a way to plot it "symbolically", without using x as a vector? > e.g. > x <- seq(from=-10, to=10, length=100) > plot(x, Fun(x)) > Thank you in advance. > > ______________________________________________ > 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.