The DM42 is not able to calculate 42.. ;-)

Discussion around the Swiss Micros DM42 calculator.
DA74254
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Location: Norway/Latvia

The DM42 is not able to calculate 42.. ;-)

Post by DA74254 » Wed Sep 11, 2019 10:05 am

Now that the "Numberphile" YT channel has revealed the answer to the life, the universe and everything:
https://www.youtube.com/watch?v=zyG8Vlw5aAw
I had to check it with my DM42. Well, it cannot calculate it's own self ;) :D
Esben
DM42 SN: 00245

Dani R.
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Dani R. » Wed Sep 11, 2019 11:26 am

WP43 can calculate 42 :o
DM42 SN:00032

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Over_score
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Location: France

Re: The DM42 is not able to calculate 42.. ;-)

Post by Over_score » Wed Sep 11, 2019 12:39 pm

Dani R. wrote:
Wed Sep 11, 2019 11:26 am
WP43 can calculate 42 :o
Yes WP43S can! :P

But DM42 can calculate 43 :D 12^3 + 8^3 + (-13)^3
DM42 (SN 00284 & 03835), DM15L, HP41CV, HP42S, HP35s, WP34S, HP Prime

Dani R.
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Dani R. » Wed Sep 11, 2019 4:35 pm

Over_score wrote:
Wed Sep 11, 2019 12:39 pm
But DM42 can calculate 43 :D 12^3 + 8^3 + (-13)^3
👍
DM42 SN:00032

Dani R.
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Dani R. » Thu Sep 12, 2019 9:50 am

Over_score wrote:
Wed Sep 11, 2019 12:39 pm
But DM42 can calculate 43 :D 12^3 + 8^3 + (-13)^3
You can simplify the example for the testSuite for 43 (2^3 + 2^3 + 3^3), but I think for 41 there is no solution.
DM42 SN:00032

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Over_score
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Over_score » Thu Sep 12, 2019 12:52 pm

Dani R. wrote:
Thu Sep 12, 2019 9:50 am
but I think for 41 there is no solution.
It seems proven that there is no solution for 41
https://en.wikipedia.org/wiki/Sums_of_three_cubes
DM42 (SN 00284 & 03835), DM15L, HP41CV, HP42S, HP35s, WP34S, HP Prime

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Jaymos
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Jaymos » Sun Sep 29, 2019 11:30 am

WP43* does also work the new non-trivial solution for 3 as well...

https://www.newscientist.com/article/22 ... z60nLxjc2X

WP43C shown:

Image
Jaco Mostert
Elec Eng, South Africa
WP34C, HP42S, DM42 for complex math; 35S, 28C, 32Sii, WP34S, EL-506P, EL-W506, PB700; owned FX702P & 11C; used 67 & 85. iOS: 42s (Byron), Free42, WP31S/34S, HCalc.
WP43C running on DM42 sn. 03818 .

gomefun2
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Re: The DM42 is not able to calculate 42.. ;-)

Post by gomefun2 » Wed Feb 05, 2020 9:43 am

It's probably possible to calculate this on the dm42 you'd just have to write an arbitrary precision program, then calculate it.

Assuming the problem is related to precision.

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Walter
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Re: The DM42 is not able to calculate 42.. ;-)

Post by Walter » Wed Feb 05, 2020 1:22 pm

gomefun2 wrote:
Wed Feb 05, 2020 9:43 am
It's probably possible to calculate this on the dm42 you'd just have to write an arbitrary precision program, then calculate it.

Assuming the problem is related to precision.
Yes, it is related to precision. WP43S allows for integers with 1000 digits.
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-50, WP 34S, WP 31S, DM16L

mezoganet
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Location: Tours, France

Re: The DM42 is not able to calculate 42.. ;-)

Post by mezoganet » Wed Feb 05, 2020 1:36 pm

Jaymos wrote:
Sun Sep 29, 2019 11:30 am
WP43* does also work the new non-trivial solution for 3 as well...

https://www.newscientist.com/article/22 ... z60nLxjc2X

WP43C shown:
Jaymos,

How can we transform a DM42 in a WP43 ?
HP33E, HP34C, HP41C, HP16C, HP28S, HP42S, HP48S, HP12C, HP35S, DM42, DM41L, DM15L, DM41X (SN#15) and HP3000 @ work during 18 yrs as IT Mgr

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