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Sec
Sec
[
z
]
gives the secant of
z
.
MORE INFORMATION
Mathematical function, suitable for both symbolic and numerical manipulation.
The argument of
Sec
is assumed to be in radians. (Multiply by
Degree
to convert from degrees.)
.
1
/
Cos
[
z
]
is automatically converted to
Sec
[
z
]
.
TrigFactorList
[
expr
]
does decomposition.
For certain special arguments,
Sec
automatically evaluates to exact values.
Sec
can be evaluated to arbitrary numerical precision.
Sec
automatically threads over lists.
EXAMPLES
CLOSE ALL
Basic Examples
(5)
The argument is given in radians:
In[1]:=
Out[1]=
Use
Degree
to specify an argument in degrees:
In[1]:=
Out[1]=
Evaluate numerically:
In[1]:=
Out[1]=
In[1]:=
Out[1]=
In[1]:=
Out[1]=
Scope
(10)
Generalizations & Extensions
(4)
Applications
(2)
Properties & Relations
(11)
Possible Issues
(5)
Neat Examples
(6)
SEE ALSO
Cos
ArcSec
Csc
Degree
TrigToExp
TrigExpand
TUTORIALS
Elementary Transcendental Functions
RELATED LINKS
MathWorld
The Wolfram Functions Site
NKS|Online
(
A New Kind of Science
)
MORE ABOUT
Trigonometric Functions
New in 1
© 2008 Wolfram Research, Inc.
.
EXAMPLES
Basic Examples 
Scope 