https://github.com/cran/pracma
Tip revision: 6bedfa382c05ccbdda30ab12438b32fd9ba13876 authored by HwB on 12 December 2012, 00:00:00 UTC
version 1.3.3
version 1.3.3
Tip revision: 6bedfa3
trigonometric.Rd
\name{cot,csc,sec, etc.}
\alias{cot}
\alias{csc}
\alias{sec}
\alias{acot}
\alias{acsc}
\alias{asec}
\title{
More Trigonometric Functions
}
\description{
More trigonometric functions not available in R.
}
\usage{
cot(z)
csc(z)
sec(z)
acot(z)
acsc(z)
asec(z)
}
\arguments{
\item{z}{numeric or complex scalar or vector.}
}
\details{
The usual trigonometric cotangens, cosecans, and secans functions
and their inverses, computed through the other well known -- in R --
sine, cosine, and tangens functions.
}
\value{
Result vector of numeric or complex values.
}
\note{
These function names are available in Matlab, that is the reason they have
been added to the `pracma' package.
}
\seealso{
Trigonometric and hyperbolic functions in R.
}
\examples{
cot(1+1i) # 0.2176 - 0.8680i
csc(1+1i) # 0.6215 - 0.3039i
sec(1+1i) # 0.4983 + 0.5911i
acot(1+1i) # 0.5536 - 0.4024i
acsc(1+1i) # 0.4523 - 0.5306i
asec(1+1i) # 1.1185 + 0.5306i
}
\keyword{ math }