https://github.com/cran/pracma
Tip revision: c1688b374d201c13fb40b4dda2d2a89e34b94ec6 authored by Hans W. Borchers on 23 January 2021, 09:10:02 UTC
version 2.3.3
version 2.3.3
Tip revision: c1688b3
sind.R
##
## s i n e d . R Trigonometric Functions with degrees
##
sind <- function(x) sinpi( x / 180 )
cosd <- function(x) cospi( x / 180 )
tand <- function(x) sinpi(x/180) / cospi(x/180)
cotd <- function(x) 1 / tand(x)
asind <- function(x) asin(x) * 180 / pi
acosd <- function(x) acos(x) * 180 / pi
atand <- function(x) atan(x) * 180 / pi
acotd <- function(x) atand(1 / x)
atan2d <- function(x1, x2) atan2(x1, x2) * 180 / pi
secd <- function(x) 1 / cosd(x)
cscd <- function(x) 1 / sind(x)
asecd <- function(x) asec(x) * 180 / pi
acscd <- function(x) acsc(x) * 180 / pi