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Macaulay2
>
The Macaulay2 language
>
operators
>
!
! -- factorial
Synopsis
Usage:
n!
Inputs:
n
,
an
integer
Outputs:
an
integer
, n factorial, 1*2*3*...*n.
Description
i1 : 30! o1 = 265252859812191058636308480000000
Ways to use
!
:
ZZ !
For the programmer
The object
!
is
a
keyword
.