factorial

Maths

the product of all the positive integers from one up to and including a given integer. Factorial zero is assigned the value of one: factorial four is 1 × 2 × 3 × 4. Symbol: n!, where n is the given integer

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

factorial

[fak′tȯr·ē·əl]

(mathematics)

The product of all positive integers less than or equal to n; written n !; by convention 0! = 1.

factorial

(mathematics)

The mathematical function that takes a natural number, N, and returns the product of N and all smaller positive integers. This is written

N! = N * (N-1) * (N-2) * ... * 1.

The factorial of zero is one because it is an empty product.

Factorial can be defined recursively as

0! = 1 N! = N * (N-1)! , N > 0

The gamma function is the equivalent for real numbers.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

factorial

The number of sequences that can exist with a set of items, derived by multiplying the number of items by the next lowest number until 1 is reached. For example, three items have six sequences (3x2x1=6): 123, 132, 231, 213, 312 and 321. See factor and IFP.

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Factorial

The factorial of a given natural number n is the product of all the natural numbers less than or equal to n. The factorial of n is denoted usually by n! Thus,

n! = 1 × 2 × ... × n

For large n an approximate expression for n! is given by Stirling’s formula. The number of permutations of n things taken all at a time is the factorial of n.

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References in periodicals archive

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When the moisture contents obtained in the factorial design are compared to the value determined by the Karl Fischer titration (20.52% [+ or -] 0.08), it is observed that the best analysis conditions for conventional oven drying are those presented in experiments 1 and 5 of Table 2, i.e., drying temperature and drying time of 70[degrees]C and 90 min respectively, with or without the use of fiberglass paper.

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So base-treated Saccharum arundinaceum was used for generation of predictive models by factorial design of analysis.

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Therefore, the effect of the column was eliminated from the factorial design and this decreased the number of runs down to (3x2x4), which is equivalent to 24 runs for every TC concentration.

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Taking all of the above into account, in this literature review, we aim to answer the question: what kind of the UWES factorial structure is the most valid one?

DO WE ALL AGREE ON HOW TO MEASURE WORK ENGAGEMENT? FACTORIAL VALIDITY OF UTRECHT WORK ENGAGEMENT SCALE AS A STANDARD MEASUREMENT TOOL--A LITERATURE REVIEW