Y = sec(X)
Y = sech(X)
sec
and sech
operate element-wise on matrices. Their domains and ranges include complex values. All angles are in radians.
sec(X)
is a matrix the same size as X
containing the secant of the elements of X
.
sech(X)
is a matrix the same size as X
containing the hyperbolic secant of the elements of X
.
sec(pi/2) = 1.6332e+16
is not infinite, but rather a value the size of the reciprocal of the floating point accuracy eps
, because pi
is only a floating-point approximation to the exact value.
asec
,asech
(c) Copyright 1994 by The MathWorks, Inc.