[R] Using uniroot() with output from deriv() or D()

[jjheath]

Hans,

Both your methods worked great!  They was exactly what I was looking for.
I ended up using the second method as it is a little more efficient:

fn2nd_fun <- function(x) eval(fn2nd, list(x=x))
    ex <- seq(from=0, to=1, length.out = 1000)
    y1 <- fn2nd_fun(ex)
    ...
    r <- uniroot(fn2nd_fun, interval=c(0, 1), tol=0.0001) 

Thanks,
J

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