HP-35s New Moon Lander behavior

[Joe Horn]

Thanks, SlideRule, for the corrected link.

KayBee, I just keyed the program linked above into an HP 35s, and it works exactly as described in its documentation. See the section called "Instructions" just above the program listing.

The listing contains one typo:
M003 INSRUMENT
was intended by the author to be
M003 INSTRUMENT
... but that is not what's causing your problem. If your program shows the messages CHECK-FUEL and BURN-RATE during pauses, but then doesn't show the 3-2-1-0 countdown, you must have a typo in your calculator somewhere between M020 and M037.

C027 is shown as Rv, but is really R↓ ... just in case that's not obvious.

A video isn't necessary; the documentation fully describes how to run the program and what you should be seeing and how to interact with it while it's running.

Good luck finding your typo!