geo2gkk - conversion geograph. coordinates -> UTM-coord.
This function uses the constants of the earth ellipsoide, how it is used by the "Deutsches Landesvermessungsamt". In the SCI file, you can see also the constants used by WGS84.
The strength of this function is, that it also delivers very good results for points with large lattitude (north and south pole regions) and that it can be used also for large values of longitudes. Very complex mathematical operations are performed.
lo1=8; la1=49; Z=geo2gkk(lo1,la1); [lo2,la2]=gkk2geo(Z); disp(lo2-lo1); disp(la2-la1);