EPSG:9637 DEPRECATED

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

Forward calculation from decimal degree representation to DMSH representation:
adeg = ABS(deg)
ideg = INT(adeg)

min = (adeg - ideg) * 60
imin = INT(min)
sec =  (min - imin) * 60

Then for latitude, if deg < 0, lathem = S else lathem = N
For longitude, if deg < 0, lonhem = W else lonhem = E

Reverse calculation from DMSH representation to decimal degree representation:
deg = (ideg + imin/60 + sec/3600) * H
where for latitude H = 1 if lathem = N and H = -1 if lathem = S
and for longitude  H = 1 if lonhem = E and H = -1 if lonhem = W