Decimal degrees

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Decimal degrees (dd) are often used in Geographic Information Systems (GIS), web-mapping applications such as Google Maps, and GPS devices to express latitude and longitude coordinates, rather than expressing geographic coordinates with degrees, minutes, and seconds (dms).

For example, the geographic coordinates of the United States Capitol are expressed with decimal degrees as "38.8898341, -77.0088651". With DMS, the coordinates are "38° 53' 23" N, 77° 00' 32" W".

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