\name{Hyperbolic}
\title{Hyperbolic Functions}
\usage{
cosh(x)
sinh(x)
tanh(x)
acosh(x)
asinh(x)
atanh(x)
}
\alias{cosh}
\alias{sinh}
\alias{tanh}
\alias{acosh}
\alias{asinh}
\alias{atanh}
\description{
These functions give the obvious hyperbolic functions.
They respectively compute the hyperbolic cosine, sine, tangent,
arc-cosine, arc-sine, arc-tangent.
}
\arguments{
  \item{x}{a numeric vector}
}
\seealso{
\code{\link{cos}}, \code{\link{sin}}, \code{\link{tan}},
\code{\link{acos}}, \code{\link{asin}}, \code{\link{atan}}.
}
\keyword{math}
