$partialdiff sub Y$ $partialdiff sub X$ $integral dY$ $partialdiff sub X$ $partialdiff sub Y$ [ WORLDBATH bath ]
| Longitude | grid: /X (degree_east) periodic [ (0.08333334W) (0) (0.08333334E) ... (0.1666565W)] N= 4320 pts :grid |
|---|---|
| Latitude | grid: /Y (degree_north) ordered (89.91667N) to (89.91667S) by 0.08333334 N= 2159 pts :grid |