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% $Id: isprime.Rd 25 2022-05-30 18:46:01Z proebuck $
\name{isprime}
\alias{isprime}
\title{MATLAB isprime function}
\description{
Array elements that are prime numbers.
}
\usage{
isprime(x)
}
\arguments{
\item{x}{numeric vector or matrix containing nonnegative integer values}
}
\value{
Returns an array (or vector) the same size as \code{x} containing logical
1 (\code{true}) for the elements of \code{x} which are prime, and logical
0 (\code{false}) otherwise.
}
\author{
H. Borchers \email{hwborchers@googlemail.com},
P. Roebuck \email{proebuck1701@gmail.com}
}
\seealso{
\code{\link{factors}},
\code{\link{primes}}
}
\examples{
x <- c(2, 3, 0, 6, 10)
ans <- isprime(x) ## 1, 1, 0, 0, 0
as.logical(ans) ## true, true, false, false, false
}
\keyword{arith}
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