# Definition of *factorial* in English:

## factorial^{}

Translate factorial into Spanish

### noun

1

(alsoMathematics**!**)

The product of an integer and all the integers below it; e.g. factorial four (4!) is equal to 24.*‘The gamma function is undefined for zero and negative integers, from which we can conclude that factorials of negative integers do not exist.’**‘Stirling wrote to De Moivre pointing out some errors that he had made in a table of logarithms of factorials in the book.’**‘They learned of each other's discoveries because each of them communicated his work to James Stirling, whose approximation for the factorial is a special case of the Euler-Maclaurin summation.’**‘Now Stirling's formula is a classical approximation for the factorial function, and factorials are one way to evaluate binomial coefficients.’**‘The experiment was a completely randomized design, with eight treatment combinations, forming a 4 x 2 factorial (four clones and two watering regimes) with five plants in individual pots per treatment combination as replication.’*

- 1.1The product of a series of factors in an arithmetic progression.
*‘In the proof below, we use the fact that e is the sum of the series of inverted factorials.’**‘‘A factorial is the product of consecutive numbers from 1 to that particular digit and is represented by placing a‘!’’*

### adjective

MathematicsRelating to a factor or factorial.

*‘a factorial design’**‘Experimental designs involving factorial combination of multiple independent variables call for some inventiveness when it comes to graphical presentation of data.’**‘Around 1926, a British statistician, Ronald Fisher, while working in the field of agriculture, developed a new form of experimentation called two-level factorial design.’**‘A 2 x 4 x 12 factorial design was used to assess the effects of light, temperature and month, respectively, on the germination of Spergularia marina seeds.’**‘One possible approach to make this search more systematic is the use of factorial design, which involves a set of experiments intended to identify important effects and interactions.’**‘Our trial was of factorial design in order to compare three types of treatment within a single trial, in order to derive the maximum amount of data from the minimum number of patients.’*

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