Hi,
I wrote a simple derivative program
(ftest=deriv(y~x^2, c(x), function(x){} ))
I put (ftest=deriv(y~x^2, c(x), function(x){} ))(1) which return 2
which is correct.
however, if I want the output to be 0 and hopefully a new inverse
function can take in output (2) and return x=1. Can this
Inverting a linear function is easy, and more generally functions need not
be invertible. But uniroot() is very helpful in finding an inverse of a
monotonic function, and the idea is used in some of the qx functions.
On Fri, 26 Jan 2007, [EMAIL PROTECTED] wrote:
Hi,
I wrote a simple
Hi,
I wrote a simple derivative program
(ftest=deriv(y~x^2, c(x), function(x){} ))
I put (ftest=deriv(y~x^2, c(x), function(x){} ))(1) which return 2 which
is correct.
however, if I want the output to be 0 and hopefully a new inverse function
can take in
output (2) and return x=1. Can this be
