Hi, All
Assume I have function x^2-1, I tried to find the root of its derivative
2*x = 0.
I run the command below but it return 1, root of the original function.
Does anyone know how to get the root of the derived function?
Thanks
pat
========================================
func = deriv(parse(text="x^2-1"), "x", func=TRUE)
uniroot(func, interval=(-0.1,1.1), tol=1e-6)
========================
$root
[1] 1
$f.root
[1] -1.709702e-07
attr(,"gradient")
x
[1,] 2
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