FACTORIAL
factorial
(adjective) of or relating to factorials
factorial
(noun) the product of all the integers up to and including a given integer; “1, 2, 6, 24, and 120 are factorials”
Source: WordNet® 3.1
Noun
factorial (plural factorials)
(mathematics, combinatorics) The result of multiplying a given number of consecutive integers from 1 to the given number. In equations, it is symbolized by an exclamation mark (!). For example, 5! = 1 Ă— 2 Ă— 3 Ă— 4 Ă— 5 = 120.
Usage notes
"n!" is read as "factorial of n" or "n factorial."
Hyponyms
• double factorial
• falling factorial
• rising factorial
Adjective
factorial (comparative more factorial, superlative most factorial)
(mathematics) Of or pertaining to a factor or factorial.
Of or pertaining to a factor, a kind of business agent.
(dated) Of or pertaining to a factory.
Source: Wiktionary
Fac*to"ri*al, a.
1. Of or pertaining to a factory. Buchanan.
2. (Math.)
Definition: Related to factorials.
Fac*to"ri*al, n. (Math.) (a) pl.
Definition: A name given to the factors of a continued product when the
former are derivable from one and the same function F(x) by
successively imparting a constant increment or decrement h to the
independent variable. Thus the product F(x).F(x + h).F(x + 2h) . . .
F[x + (n-1)h] is called a factorial term, and its several factors
take the name of factorials. Brande & C.
(b) The product of the consecutive numbers from unity up to any given
number.
Source: Webster’s Unabridged Dictionary 1913 Edition