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
nextpow2.Rd
\name{nextpow2}
\alias{nextpow2}
\title{Next Power of 2}
\description{
Smallest power of 2 greater than the argument.
}
\usage{
nextpow2(x)
}
\arguments{
\item{x}{numeric scalar, vector, or matrix}
}
\details{
Computes the smalest integer \code{n} such that \eqn{abs(x) \le 2^n}.
IF \code{x} is a vector or matrix, returns the result component-wise.
For negative or complex values, the absolute value will be taken.
}
\value{
an integer \code{n} such that \eqn{x \le 2^n}.
}
\seealso{
\code{\link{pow2}}
}
\examples{
nextpow2(10) #=> 4
nextpow2(1:10) #=> 0 1 2 2 3 3 3 3 4 4
nextpow2(-2^10) #=> 10
nextpow2(.Machine$double.eps) #=> -52
}
\keyword{ arith }
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