Read Geographic Location from a GPS
Open a Garmin GPS18 USB device and read in the current geographic location.
| In[1]:= |  X |
| Out[1]:= |  |
| In[2]:= |  X |
| Out[2]:= |  |
Find the name of the city nearest to this location.
| In[3]:= |  X |
| Out[3]= |  |
Compute the distance between the current location and Hong Kong.
| In[4]:= |  X |
| Out[4]= |  |
