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Tip revision: 47d92af76b798b721fc1fbfe59a1e52441ca63b5 authored by Douglas Bates on 07 August 2005, 00:00:00 UTC
version 0.98-2
version 0.98-2
Tip revision: 47d92af
lu.Rd
\name{lu}
\title{Triangular Decomposition of a Square Matrix}
\usage{
lu(x, \dots)
}
\alias{lu}
\description{
Computes triangular decompositions of square matrices.
}
\arguments{
\item{x}{a matrix. No missing values or IEEE special values are allowed.}
\item{\dots}{further arguments passed to or from other methods.}
}
\value{
an object of class \code{"LU"}, see \code{\link{LU-class}}; this is
a representation of a triangular decomposition of \code{x}.
}
\details{
This is a generic function with special methods for different types
of matrices. Use \code{\link{methods}("lu")} to list all the methods
for the \code{lu} generic.
}
\references{
Golub, G., and Van Loan, C. F. (1989).
\emph{Matrix Computations,}
2nd edition, Johns Hopkins, Baltimore.
}
\seealso{
\code{\link{LU-class}} and \code{\link{expand}};
\code{\link{qr}}, \code{\link{chol}}.
}
\examples{
x <- Matrix(rnorm(9), 3, 3)
lu(x)
}
\keyword{array}
\keyword{algebra}