product | computing dictionary |

<mathematics, computer programming> An expression in mathematics or computer programming consisting of two other expressions multiplied together. In mathematics, multiplication is usually represented by juxtaposition, e.g. "x y", whereas in programming, "*" is used as an infix operator, e.g. "salary * tax_rate.

In the most common type of product, each operand is a number (integer, real number, fraction or imaginary number) but the term extends naturally to cover more complex operations like multiplying a string by an integer (e.g., in Perl, "foo" x 2) or multiplying vectors and matrices or more than two operands.

In type systems, a tuple is sometimes known as a "product type".

(01 Nov 2006)

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product | education dictionary |

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product | medical dictionary |

1. Anything that is produced, whether as the result of generation, growth, labour, or thought, or by the operation of involuntary causes; as, the products of the season, or of the farm; the products of manufactures; the products of the brain. "There are the product Of those ill-mated marriages." (Milton) "These institutions are the products of enthusiasm." (Burke)

2. <mathematics> The number or sum obtained by adding one number or quantity to itself as many times as there are units in another number; the number resulting from the multiplication of two or more numbers; as, the product of the multiplication of 7 by 5 is 35. In general, the result of any kind of multiplication. See the Note under Multiplication.

Synonyms: Produce, production, fruit, result, effect, consequence, outcome, work, performance.

Origin: L. Productus, p. Pr. Of producere. See Produce.

(01 Mar 1998)

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