multinomial theorem

E26831

The multinomial theorem is a fundamental algebraic formula that generalizes the binomial theorem to express powers of sums with any number of terms using multinomial coefficients.

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AI-generated illustration of multinomial theorem

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Prompt

Generate an image of the multinomial theorem (The multinomial theorem is a fundamental algebraic formula that generalizes the binomial theorem to express powers of sums with any number of terms using multinomial coefficients.)

All labels observed (3)

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Statements (44)

Predicate Object
instanceOf algebraic identity ⓘ
mathematical theorem ⓘ
appearsIn expansion of (a+b+c+...)^n ⓘ
higher-dimensional Taylor expansions ⓘ
moment calculations in statistics ⓘ
appliesTo (x1 + x2 + ... + xm)^n ⓘ
assumes m is a positive integer ⓘ
n is a nonnegative integer ⓘ
x1,...,xm are elements of a commutative ring or field ⓘ
basisFor definition of multinomial distribution probabilities ⓘ
some algorithms in symbolic computation ⓘ
category finite sums and products identities ⓘ
coefficientOf x1^{k1}...xm^{km} equals n!/(k1!...km!) ⓘ
connectedTo combinatorial counting of distributions of n identical objects into m boxes ⓘ
stars and bars method ⓘ
describes expansion of powers of sums with multiple terms ⓘ
field algebra ⓘ
combinatorics ⓘ
generalizationOf Newton binomial formula ⓘ
generalizes binomial theorem ⓘ
hasComponent multinomial coefficient n!/(k1!...km!) ⓘ
implies number of distinct terms in expansion equals C(n+m-1, m-1) ⓘ
involves sum over all m-tuples of nonnegative integers (k1,...,km) with k1+...+km=n ⓘ
proofMethods combinatorial argument ⓘ
generating functions ⓘ
induction on n ⓘ
relatedTo multinomial coefficient ⓘ
multinomial distribution ⓘ
relates factorials to exponents in polynomial expansions ⓘ
requires commutativity of multiplication for variables x1,...,xm ⓘ
specialCase reduces to binomial theorem when m = 2 ⓘ
states (x1 + x2 + ... + xm)^n = Σ_{k1+...+km=n} (n!/(k1!...km!)) x1^{k1}...xm^{km} ⓘ
typeOfGeneralization combinatorial generalization of binomial expansion ⓘ
usedFor computing coefficients in multivariate polynomials ⓘ
counting ordered outcomes in m-way experiments with n trials ⓘ
usedIn combinatorial proofs ⓘ
enumerative combinatorics ⓘ
polynomial algebra ⓘ
probability theory ⓘ
series expansions ⓘ
uses multinomial coefficients ⓘ
validOver any commutative ring with identity ⓘ
complex numbers ⓘ
real numbers ⓘ

How these facts were elicited

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

binomial theorem → isSpecialCaseOf → multinomial theorem ⓘ
binomial theorem → generalizedBy → multinomial theorem ⓘ
Pascal's triangle → generalization → Pascal's pyramid ⓘ
linked to: multinomial theorem
Dirichlet distribution → conjugateTo → multinomial distribution ⓘ
linked to: multinomial theorem