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\name{polyroot_NR}
\alias{polyroot_NR}
\docType{methods}
\title{Find one real polynomial root using Newton--Raphson method.}
\description{
Finds one real polynomial root using Newton--Raphson method,
implemented according to Wikipedia.
}
\usage{
polyroot_NR( p, init = 0, epsilon = 1e-6, debug = FALSE, implementation = "C" )
}
\arguments{
\item{p}{vector of polynomial coefficients.}
\item{init}{initial value.}
\item{epsilon}{tolerance threshold for convergence.}
\item{debug}{flag to turn the debug prints on/off.}
\item{implementation}{
flag to switch between C (default) and R implementations.
}
}
\value{
Real polynomial root.
}
\references{
Users of Wikipedia.
Newton's method.
\url{https://en.wikipedia.org/w/index.php?title=Newton\%27s_method&oldid=710342140}
}
\author{Andrius Merkys}
|
