arctan
arctan |
Purpose
Synopsis
function arctan(r:real):real
Argument
|
r
|
Real number to which to apply the trigonometric function
|
Return value
Arctangent of the argument.
Example
The following functions compute the arcsine and arccosine of a value:
function arcsin(s:real):real returned:=arctan(s/sqrt(1-s^2)) end-function function arccos(c:real):real returned:=arctan(sqrt(1-c^2)/c) end-function
Related topics