Aspects Regarding the Conversion of the Geographical Coordinates into Stereographical 1970 Coordinates.

The paper treats the conversion of geographical coordinates into Stereographical 1970 coordinates. The transformation takes place in two distinct phases, which consist in transforming the geographic coordinates in rectangular coordinates on a tangent to the Krasovski ellipsoid in the projection pole and then the coordinates reduction of the tangent plan into the secant plan parallel to the tangent, located at a depth of 3.18 km. For checking the transformation, the inverse transformation is done, from rectangular coordinates in secant plan into rectangular coordinates in tangent plan and after into geographical coordinates. For the conversion is used the constant coefficients method with solving matrix. [ABSTRACT FROM AUTHOR]