Revision 04bbc417cf2927b827660bc07743429783569aec authored by HwB on 10 February 2013, 00:00:00 UTC, committed by Gabor Csardi on 10 February 2013, 00:00:00 UTC
1 parent 0e3ae6b
pow2.Rd
\name{pow2}
\alias{pow2}
\title{Base 2 Power}
\description{
Power with base 2.
}
\usage{
pow2(f, e)
}
\arguments{
\item{f}{numeric vector of factors}
\item{e}{numeric vector of exponents for base 2}
}
\details{
Computes the expression \code{f * 2^e}, setting \code{e} to \code{f}
and \code{f} to 1 in case \code{e} is missing.
Complex values are only processed if \code{e} is missing.
}
\value{
Returns a numeric vector computing \eqn{f\,2^e}.
}
\seealso{
\code{\link{nextpow2}}
}
\examples{
pow2(c(0, 1, 2, 3)) #=> 1 2 4 8
pow2(c(0, -1, 2, 3), c(0,1,-2,3)) #=> 0.0 -2.0 0.5 24.0
pow2(1i) #=> 0.7692389+0.6389613i
}
\keyword{ arith }
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