In the formulas that follow, the coordinate strings are symbolically represented as follows:¶¶deg                     decimal degrees¶adeg                   absolute value of decimal degrees¶ideg                     integer degrees¶sdeg                   signed integer degree¶min                      real-number minutes¶imin                      integer minutes¶sec                      real-number seconds¶lathem, lonhem    hemisphere abbreviation¶¶
In this conversion the degree parameters remain unchanged in this conversion (both forward and reverse). The hemisphere parameters retain their values but change their positions in their respective coordinate strings.¶¶Forward calculation from HDM representation to DMSH representation:¶imin = INT(min)¶sec = (min - imin) * 60¶Then reorder fields from hem, ideg, imin, sec to ideg, imin, sec, hem.¶¶Reverse calculation from DMSH representation to HDM representation:¶min = imin + (sec / 60)¶Then re-order fields from ideg, min, hem to hem, ideg, min.