This program returns the same information as Graphical Locater
for any latitude/longitude pair.
This program covers
the northwest quarter of the earth, but results are very limited outside the USA.
Latitudes can range from 0 to 90 and longitudes can range from 0 to 180.
Minutes and seconds normally range from 0 to 60, but this is not enforced here.
In the form, any (or all) of the components may be decimal.
All numeric input is treated as positive and additive, other input is treated as 0.0.
Input to the nearest whole second is accurate to about 40 m in the central USA.
13 JULY 2000, D.L. Gustafson,