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The number of digits in a decimal fraction to the right of the decimal point.
In air operations, pertaining to a navigational facility which provides a combined azimuth and glide slope guidance to a runway.
(science and technology)
The measure of the range of values of a set of measurements; indicates reproducibility of the observations.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a measure of the dispersion of the values of a random variable. The precision h is related to the standard deviation σ by the formula

This method of measuring dispersion is justified since, in the case of a normal distribution, the probability density of a random variable with precision h and mathematical expectation a is described by the formula

The precision is used as a measure of the dispersion primarily in gunnery theory and the theory of errors.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


The number of decimal places to which a number is computed.

Compare accuracy.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


The number of digits used to express the fractional part of a number. The more digits, the more precision. See single precision and double precision. See also accuracy.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Booton, previously worked in Precision's Seattle market and Managed residential operations in San Diego.
About Precision Door Service Commercial Division of San Diego:
Precision Door Service Commercial; specializes in the repair, service, sales and installation of commercial garage doors and automatic openers.
* Advocate and promote awareness of the need for a strong defense capability that emphasizes the precision engagement operational concept.
* Encourage mutual understanding of precision engagement concepts and systems and collaboration in the international marketplace among industry leaders, political leaders, the media and the public.
* Advance technologies associated with precision engagement.
Whitehead describes the final stage as generalization, during which the individual returns to the stage of romance, but now with the experience of the depth and synthesis that come from the period of precision. The individual is able to apply techniques and insights gained from prior study to a larger picture.
Bloom's second stage parallels Whitehead's stage of precision, where the pianist spends much time on details.
Every lab engaged in QA testing should know this precision data ( 2s sub.1tr] in absolute terms or in %, see above) for all relevant QA tests.
The example given in table 2 shows that this view is certainly not correct; test precision data, given as long-term repeatability coefficients of variation, can be compared and show big differences (factor of 4.6).