the
sech
of
factor
sech
(
expression )
Factor and expression yield integer
s, number
s, or complex
es.
put the sech of 2 -- yields 0.265802
The sech
function returns the hyperbolic secant of the value that is passed to it.
If the argument is an integer
or a number
, a number
is returned. If the argument is a complex
, a complex
is returned.