https://github.com/cran/pracma
Revision 26e049d70b4a1c237987e260cba68f6a9413736c authored by Hans W. Borchers on 09 April 2019, 04:10:07 UTC, committed by cran-robot on 09 April 2019, 04:10:07 UTC
1 parent bf07673
Tip revision: 26e049d70b4a1c237987e260cba68f6a9413736c authored by Hans W. Borchers on 09 April 2019, 04:10:07 UTC
version 2.2.5
version 2.2.5
Tip revision: 26e049d
polymul.Rd
\name{polymul}
\alias{polymul}
\title{Multiplying Polynomials}
\description{
Multiply two polynomials given as vectors.
}
\usage{
polymul(p, q)
}
\arguments{
\item{p, q}{Vectors representing two polynomials.}
}
\details{
Polynomial multiplication realized simply by multiplying and summing up
all the coefficients.
}
\value{
Vector representing a polynomial.
}
\note{
\code{conv} also realizes polynomial multiplication, through Fast Fourier
Transformation, with the drawback that small imaginary parts may evolve.
}
\seealso{
\code{conv}, \code{deconv}
}
\examples{
# Multiply x^2 + x + 1 with itself
polymul(c(1, 1, 1), c(0, 1, 1, 1)) #=> 1 2 3 2 1
}
\keyword{ math }
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