https://github.com/cran/pracma
Tip revision: e970b8e92676e0d1f2c84b116f0bad93b03b89c6 authored by Hans W. Borchers on 15 December 2019, 21:30:02 UTC
version 2.2.9
version 2.2.9
Tip revision: e970b8e
eps.Rd
\name{eps}
\alias{eps}
\title{
Floating Point Relative Accuracy
}
\description{
Distance from 1.0 to the next largest double-precision number.
}
\usage{
eps(x = 1.0)
}
\arguments{
\item{x}{scalar or numerical vector or matrix.}
}
\details{
\code{d=eps(x)} is the positive distance from \code{abs(x)} to the next
larger floating point number in double precision.
If \code{x} is an array, \code{eps(x)} will return \code{eps(max(abs(x)))}.
}
\value{
Returns a scalar.
}
\examples{
for (i in -5:5) cat(eps(10^i), "\n")
# 1.694066e-21
# 1.355253e-20
# 2.168404e-19
# 1.734723e-18
# 1.387779e-17
# 2.220446e-16
# 1.776357e-15
# 1.421085e-14
# 1.136868e-13
# 1.818989e-12
# 1.455192e-11
}
\keyword{ arith }