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see numbernumber,
entity describing the magnitude or position of a mathematical object or extensions of these concepts. The Natural Numbers

Cardinal numbers describe the size of a collection of objects; two such collections have the same (cardinal) number of objects if their
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; number theorynumber theory,
branch of mathematics concerned with the properties of the integers (the numbers 0, 1, −1, 2, −2, 3, −3, …). An important area in number theory is the analysis of prime numbers.
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Any positive or negative counting number or zero.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


any rational number that can be expressed as the sum or difference of a finite number of units, being a member of the set …--3, --2, --1, 0, 1, 2, 3…
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


(Or "whole number") One of the finite numbers in the infinite set

..., -3, -2, -1, 0, 1, 2, 3, ...

An inductive definition of an integer is a number that is either zero or an integer plus or minus one. An integer is a number with no fractional part. If written as a fixed-point number, the part after the decimal (or other base) point will be zero.

A natural number is a non-negative integer.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


A whole number. In programming, sending the number 123.398 to an integer function would return 123. Integers can be signed (positive or negative) or unsigned (always positive). If signed, the leftmost bit is used as the sign bit, and the maximum value of each sign is thus cut in half. For example, an 8-bit unsigned integer stores the values 0 to 255, whereas an 8-bit signed integer can store -128 to +127. See integer arithmetic and floating point.
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References in periodicals archive ?
Stepped linear gradient: a family of profiles derived from the one above by sampling a discrete number of steps as before, shown in Fig.
(1) The discrimination must not be based on relative quantities of stimuli, that is, "more" versus "fewer": If animals respond more to five objects than to four objects after being trained to respond to four, the discrimination is not considered discrete number discrimination but is analogous to relative quantity discrimination.
Each package typically has a discrete number of individual modules - as many as 30 or 40 in some cases.
In other words, although payers may be able to cope with the current requirement of segregating service from non-service payments in respect of a discrete number of non-corporate payees, they could easily be overwhelmed by such a segregation requirement in respect of the much larger universe of corporate payees.(18) If TEI's proposed non-segregation rule is not adopted, the need for guidance on the definition of reportable services will become more pronounced.(19)
Even in its initial conception, Fourier analysis provided a symbolic mechanism to master dynamic physical events by approximation: that is, by converting continuous events into discrete numbers. By converting a function of time into a new function of frequency, the time domain of a signal is converted into discrete numerical values.

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