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Combinatorial Functions
Factorial
(
!
)
—
factorial function (total arrangements of
n
objects)
Subfactorial
—
number of derangements of
n
objects, leaving none unchanged
Factorial2
(
!!
)
—
double factorial
Binomial
—
binomial coefficients
Multinomial
—
multinomial coefficients
CatalanNumber
—
Catalan numbers
StirlingS1
,
StirlingS2
—
Stirling numbers
PartitionsP
—
number of partitions of an integer
BellB
—
Bell numbers
FrobeniusNumber
—
Frobenius number for a list
ClebschGordan
▪
ThreeJSymbol
▪
SixJSymbol
TUTORIALS
Combinatorial Functions
Special Functions
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Discrete Mathematics
Integer Functions
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