double precision

Refers to a high level of coordinate accuracy based on the possible number of significant digits that can be stored for each coordinate. ARC/INFO data sets can be stored in either single- or double-precision coordinates. Double-precision coverages store up to 15 significant digits per coordinate (typically, 13 to 14 significant digits), retaining the accuracy of much less than one meter at a global extent. See also single precision.

In the Java programming language specification, describes a floating point number that holds 64 bits of data. See also single precision.