Actually I spoke too soon David.
I'm looking for a function that will either tell me which point is the
intersection so that I'd be able to plot a point there.
Or, if I have to solve for the roots in the ways which were demonstrated
yesterday, then would I be able to specify what the horizontal line is, for
instance in the case where y (is-not) 0?
On Aug 12, 2010, at 12:47 PM, David Winsemius wrote:
On Aug 12, 2010, at 3:43 PM, TGS wrote:
> I'd like to plot a point at the intersection of these two curves. Thanks
>
> x <- seq(.2, .3, by = .01)
> f <- function(x){
> x*cos(x)-2*x**2+3*x-1
> }
>
> plot(x,f(x), type = "l")
> abline(h = 0)
Would this just be the uniroot strategy applied to "f"? You then plot the x and
y values with points()
--
David Winsemius, MD
West Hartford, CT
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