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Single Precision

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single precision
See Also: double precision
[data quality] A level of coordinate exactness based on the number of significant digits that can be stored for each coordinate.

 


single precisionRefers to a level of coordinate accuracy based on the number of significant digits that can be stored for each coordinate.

Single precision can store a coordinate of seven digits without rounding. Thus, a point located at X=1,234,565 feet and Y=4,701,114 feet would remain precise through many processing operations down to the nearest foot.

single precision
A level of coordinate exactness based on the number of significant digits that can be stored for each coordinate.

Single precision - The storage of numerical values in the computer using the default precision that stores up to 7 significant digits.
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A single precision number carries six decimal places, so-
365214 ft/degree * 0.000001= .365214 ft *12 = 4.38257 inch precision ...

Single precision numbers can store up to seven significant digits for each coordinate and thus retain a precision of five meters in an extent of 1,000,000 meters.

The processed grid was saved in "binary" (single precision floating point file plus a header file) format using Spatial Analyst and zipped. Download the file here.
Access ...

single and double precision are used to refer to the number of digits that can be stored for a single value
single precision commonly allocates 32 bits, or 4 bytes, of memory for each value ...

Refers to the number of significant digits used to store numbers, and in particular, coordinate values. Precision is important for accurate feature representation, analysis and mapping. ArcInfo supports single precision and double precision.

See also: Latitude, Parallel, Projection, Location, GIS

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