Oldie question...HPX V1N4 Space Shuttle Lander game - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: Oldie question...HPX V1N4 Space Shuttle Lander game (/thread-65857.html) |
Oldie question...HPX V1N4 Space Shuttle Lander game - Gene - 11-16-2004 Page 19 and 20 of the HPX Journal V1N4. Has a space shuttle landing simulator for the HP41. Questions: 1) Steps 109 and 155 are listed as "EXP". The other steps in the listing are fairly evident, but this one I'm not sure about. Is this "e^x"? or "10^x"? or ? The program has number entry lines where the EEX key is used to enter 1E3 for example. The program has -15 in the X register prior to this step.
2) More general question, I guess. Anyone ever try this? :-)
Re: Oldie question...HPX V1N4 Space Shuttle Lander game - bill platt - 11-16-2004 Hi,
I don't know much at all about the 41c, but isn't EXP usually natural, and ALOG usually the "antilog" of Log base 10?
Re: Oldie question...HPX V1N4 Space Shuttle Lander game - Gene - 11-16-2004 True, but since the listing shows x^2 and y^x, I would have thought that the exponential function would have been e^x. That's what I think it is, but the program listing didn't explain that abbreviation. :-)
Gene
Re: Oldie question...HPX V1N4 Space Shuttle Lander game - Thibaut.be - 11-17-2004 Maybe they mean EEX... ?
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