Another HP 15CE post with pictures…

[Geoff Quickfall]

Firstly, thanks!

Now to the point of data entry:

Depends on the program and the stack used. The voyager as with many others have are restricted to a 4 stack data input such as

‘A’ ENTER
‘B’ ENTER
‘C’ ENTER
‘D’

That worked with the data input in the Aviation co-ord routine by pressing “A” (in user mode) after the above four steps.

So that one routine enters two points for both the Great Circle distance and track program and the Intermediate Latitude routine. BUT the Intermediate Latitude routine requires another data input, the longitude required to determine the latitude associated with it on the great circle plot.

If you have greater than four data points to input, then a R/S (there are no prompts on the Voyagers) would allow for greater than four inputs.

_____________________

In the Aviation Pac I packed as many standalone routines in as possible with the use of USER mode keys A through E and GSB 0 through 9 and GSB .4 through .9. Why you might ask; well this has the effect of making key assignments.

The missing GSB .0 through .3 were used as subroutines in various routines, which I tried to keep to a minimum allowing for the maximum amount of assignable routines.

This did make some of the routines less elegant using conditionals. But one can modify the pac to reflect their preferences. Of course the overlay may not match any longer.

______________________

The upshot is, your choice, what is convenient, requires the least amount of knowledge to run (lowest common denominator as a user :-)

I cover this in the manual preamble in more detail.

Cheers