Re: A guess: (was HP49g Complex Numbers) Message #21 Posted by James M. Prange on 13 Nov 2002, 1:43 a.m., in response to message #20 by Jason
Hi Jason,
To get to the "Try To Recover Memory?" screen, release the F6 key before the F1 key. If you release the F1 key before the F6 key, then (as you found) it goes into a self-test sequence, just as if you had used the ON with F6 key combination.
As for ALG mode, I don't know much about it; it seems awfully complicated to me. It could be that trying to use the 49G in ALG mode is just as difficult as trying to use a TI. But I tried entering a complex number and a vector in ALG mode, and it worked just fine. I also tried it on a 49G with the old 1.18 ROM (in both RPN and ALG modes), and didn't see any difference there.
I highly recommend getting a serial cable to connect your 49G to your PC. Note that you don't need to buy the full "Connectivity Kit"; the software part is freely available at, among other places, http://www.hpcalc.org/. This will allow you not only to upgrade your ROM, but to download software (see what's available at hpcalc.org), backup your calculator to the PC, and develop your own programs on the large screen of your PC.
Come to think of it, I got a free "Connectivity Kit" (a CD-R of software, serial cable, and adapter for the 48 series), the 49G AUG, and the newer 49G Pocket Guide from HP by calling the support number in the back of the User's Guide. I don't know if HP is still doing that, but it's probably worth a try.
Regards, James
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