# precision

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## precision

[prə′sizh·ən]
(mathematics)
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.

## Precision

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.

## precision

(mathematics)
The number of decimal places to which a number is computed.

Compare accuracy.

## precision

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.
References in periodicals archive ?
In addition, Precise Castings installed an air management system to control the exhaust fumes and heat conditions to maintain a good environment for the workers.
In order to create a "level playing field" for the OEMs, Precise Technology supplied each manufacturer with all the information it needed to supply accurate data on equipment and potential cost savings.
29 November 2011 - Swedish fingerprint solutions provider Precise Biometrics AB (STO:PREC) said today that UK company Card Personalisation Solutions Ltd, or CPS, had agreed to act as distributor/reseller of Precise Biometrics' card readers.
Larry Powell of Precise Plastic doubts that there's a robot out there that doesn't wiggle a little.
M2 EQUITYBITES-December 1, 2016-Precise Biometrics' algorithm solution Precise BioMatch Mobile deployed in smartphone from Chinese vendor
Precise Biometrics (STO:PREC), a provider of fingerprint software, announced on Tuesday that it has entered into a commercial software license and distribution agreement with Image Match Design Inc for the licensing of Precise BioMatch Mobile and Precise BioMatch Embedded, the company's algorithm solutions for fingerprint recognition.
Precise Biometrics, the leader in fingerprint software, has entered an agreement with Betterlife, for licensing of Precise Biometrics algorithm solutions for fingerprint recognition, Precise BioMatch Mobile and Precise BioMatch Embedded.
The Swedish biometric security solutions developer Precise Biometrics AB said on Wednesday (29 June) that it had signed a three-year business agreement with the smart card technology solutions provider IRIS Corporation Berhad (Malaysia).
M2 EQUITYBITES-October 24, 2016-Precise Biometrics announces license agreement with InvenSense for its Precise BioMatch Mobile and Precise BioMatch Embedded solutions

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