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Factorial
(!)
n
!
gives the factorial of
n
.
MORE INFORMATION
Mathematical function, suitable for both symbolic and numerical manipulation.
For non-integer
n
, the numerical value of
n
!
is given by
Gamma
[1+
n
]
.
For integers and half integers,
Factorial
automatically evaluates to exact values.
Factorial
can be evaluated to arbitrary numerical precision.
Factorial
automatically threads over lists.
EXAMPLES
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Basic Examples
(1)
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Scope
(7)
Generalizations & Extensions
(4)
Applications
(6)
Properties & Relations
(5)
Possible Issues
(2)
Neat Examples
(3)
SEE ALSO
Gamma
Binomial
Pochhammer
Factorial2
Subfactorial
TUTORIALS
Some Mathematical Functions
Combinatorial Functions
RELATED LINKS
Implementation notes: Numerical and Related Functions
MathWorld
The Wolfram Functions Site
NKS|Online
(
A New Kind of Science
)
MORE ABOUT
Combinatorial Functions
Discrete Mathematics
Functions Used in Statistics
Gamma Functions and Related Functions
Integer Functions
Mathematical Functions
Recurrence and Sum Functions
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© 2008 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope 