GeoDLL supports the development of geodetic software by providing geodetic functions, which are put together into function groups for specific tasks. To use notation calculations and exact rounding of geographic coordinates in own developments a license for the function group "Notation Calculations" can be purchased.
The group "Notation Calculations" contains functions for conversions of geographic coordinates from one notation to another and for correct decimal rounding of geographic coordinates of different notations.
Detailed descriptions of all geodetic functions of this function group you find here in the online manual!