*Choose Index below for a list of all words and phrases defined in this glossary.*

**variance-covariance matrix **- [surveying] In surveying, the symmetric 3x3 matrix that mathematically expresses the correlation between errors in coordinates x, y, and z.

[Category=Geospatial ]

*Source: esri, 25 September 2012 08:34:34, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation *

Data Quality Glossary. A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl