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HP 10C question about [n!]
11-14-2017, 07:00 AM (This post was last modified: 11-14-2017 07:05 AM by Gamo.)
Post: #1
HP 10C question about [n!]
I'm happen to try HP 10C emulator on the web and just noticed that the function n! can compute Gamma Function as well. Hear that the symbol n! on HP's calculator cannot do gamma function where as x! can do it. I don't have physical HP 10C and would like to know if the real HP 10C really can do gamma function.

Thank You

Gamo
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11-14-2017, 07:53 AM (This post was last modified: 11-14-2017 07:55 AM by Thomas Okken.)
Post: #2
RE: HP 10C question about [n!]
(11-14-2017 07:00 AM)Gamo Wrote:  I'm happen to try HP 10C emulator on the web and just noticed that the function n! can compute Gamma Function as well. Hear that the symbol n! on HP's calculator cannot do gamma function where as x! can do it. I don't have physical HP 10C and would like to know if the real HP 10C really can do gamma function.

The real HP-10C cannot do gamma. Its n! function really is just n!, not gamma(n+1).
I checked on my real 10C, just to be sure.
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11-14-2017, 07:56 AM
Post: #3
RE: HP 10C question about [n!]
(11-14-2017 07:00 AM)Gamo Wrote:  I'm happen to try HP 10C emulator on the web and just noticed that the function n! can compute Gamma Function as well. Hear that the symbol n! on HP's calculator cannot do gamma function where as x! can do it. I don't have physical HP 10C and would like to know if the real HP 10C really can do gamma function.

After all this is a museum, so you can look up such things easily, in this case on the 10C features page. So the 10C doesn't seem to have a Gamma function.

This also means that you do not use an emulator but a simulator that does not run the original 10C microcode.

Dieter
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11-14-2017, 09:49 AM
Post: #4
RE: HP 10C question about [n!]
Thank You Dieter and Thomas Okken
My bad didn't check the specifications on HP museum page. Was surprise at first that 10C can do it then now I know.
The one thing I like about the 10C is the [P/R] botton
To put in program mode no need to press shift key.

Gamo
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11-14-2017, 07:18 PM
Post: #5
RE: HP 10C question about [n!]
Gamma function program for HP 10C: http://www.rskey.org/hp10c
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11-15-2017, 04:39 PM
Post: #6
RE: HP 10C question about [n!]
(11-15-2017 05:17 AM)Mike (Stgt) Wrote:  
(11-14-2017 07:00 AM)Gamo Wrote:  ... HP 10C emulator ...

Nice. Who knows how many 10C "emulators" exist? I do not mean Free42-like simulations but 'firmware-interpreters' based on the original firmware of the real thing. (BTW, Free42 is a class of its own, a well done simulation of all aspects is for sure a valuable replacement.)

Ciao.....Mike

Yes, Thomas Okken is almost like a god to me as are David and Michael at SwissMicros who took Okken's software and built hardware around it. Those people are amazing!.

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11-15-2017, 05:36 PM
Post: #7
RE: HP 10C question about [n!]
(11-15-2017 05:17 AM)Mike (Stgt) Wrote:  
(11-14-2017 07:00 AM)Gamo Wrote:  ... HP 10C emulator ...

Nice. Who knows how many 10C "emulators" exist? I do not mean Free42-like simulations but 'firmware-interpreters' based on the original firmware of the real thing.

It looks like even before Voyager support was removed from Nonpareil, it only emulated the 11C, 12C, 15C, and 16C -- not the 10C. I wonder why? Is the hardware different in some way?
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11-16-2017, 12:54 PM
Post: #8
RE: HP 10C question about [n!]
(11-15-2017 05:36 PM)Thomas Okken Wrote:  
(11-15-2017 05:17 AM)Mike (Stgt) Wrote:  Nice. Who knows how many 10C "emulators" exist? I do not mean Free42-like simulations but 'firmware-interpreters' based on the original firmware of the real thing.

It looks like even before Voyager support was removed from Nonpareil, it only emulated the 11C, 12C, 15C, and 16C -- not the 10C. I wonder why? Is the hardware different in some way?

No ROM dump at the time...

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    Massimo

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