49 50 Ver6.09.hp Geodesic distance & Earth Euclidean distance calculator, bearing

[Gil]

Version 6.4

The latitudes should always be in the interval [-90 +90].

Now, if is not the case (lat < -90 or lat > 90), a DOERR instruction was introduced.
Note also that, in that case (lat < -90 or lat > 90), when using multiple points distances calculation P1.. PN—>SS, the whole process will — unfortunately — be interrupted and the intermediary variables will consequently be deleted (in order to leave an original, "clean" DATA.DIST directory).

When a faulty error appear, according to the program, the introduced inputs are left in their initial order — or not, when less than 3 values appear in the stack.

In that latter case, the wrong latitude will appear on stack level 1. Depending on the program, you then have to do either:
- DROP, write new value in place of faulty latitude and run again the program;
- DROP, write new value in place of faulty latitude, SWAP and run again the program;
- DROP, write new value in place of faulty latitude, ROT, ROT and run again the program.

For the time being, I left the Poles treatment as already mentioned in the previous versions; possibly, however, I will have to adapt it back to the usual, geodesic approach.

Regards,
Gil