Search found 186 matches

by mcc
Sat Dec 29, 2018 7:38 am
Forum: DM42
Topic: Dave Jones (EEVBLOG) tries the DM42
Replies: 11
Views: 551

Re: Dave Jones (EEVBLOG) tries the DM42

Hi, I have a slightly offtopic question: The wikipedia page referenced earlier talks about the Reciprocal Fibonacci constant . And it is said, that this sum tends to the reciprocal of the golden ratio and is: 3.3599.... . Also this Wikipedia page links to its entry of the Golden Ratio, which is said...
by mcc
Fri Dec 28, 2018 7:43 pm
Forum: DM42
Topic: Dave Jones (EEVBLOG) tries the DM42
Replies: 11
Views: 551

Re: Dave Jones (EEVBLOG) tries the DM42

Hi,

thanks to all for helping me for NOT haveing a problem ;)

...yes...that's it... the number runs out of the sane range...

Cheers!
Meino
by mcc
Fri Dec 28, 2018 12:43 pm
Forum: DM42
Topic: Dave Jones (EEVBLOG) tries the DM42
Replies: 11
Views: 551

Re: Dave Jones (EEVBLOG) tries the DM42

Hi,

from the thread I typed in the "Reciprocal Fibonacci Constant" ... it fails with "Invalid Data" at the NOT command.
Is there anybody, who git it running on her/his DM42?

Cheers!
Meino
by mcc
Thu Dec 27, 2018 6:34 pm
Forum: DM42
Topic: Dave Jones (EEVBLOG) tries the DM42
Replies: 11
Views: 551

Dave Jones (EEVBLOG) tries the DM42

Hi,

Dave Jone from the EEVBLOG tries the DM42...
https://www.youtube.com/watch?v=Ong91Ji3iDk

Cheers!
mcc
by mcc
Wed Nov 21, 2018 3:43 pm
Forum: Usage tips, tricks and problem reports
Topic: "Hard Fault" out of the blue
Replies: 3
Views: 707

Re: "Hard Fault" out of the blue

HI, it hit me again...this time only "QSPI checking" was displayed, the RAM was cleared and I had to recover the programs from flash. As it happens I was playing with the short routine shown here: https://forum.swissmicros.com/viewtopic.php?f=17&t=2022&sid=95fb4bbbf8c3afe599425d865d3c70ba#p9358 Chee...
by mcc
Wed Nov 21, 2018 3:41 pm
Forum: Usage tips, tricks and problem reports
Topic: Flag toggling
Replies: 0
Views: 208

Flag toggling

Hi,

I found a little two-command sequence to toggle a flag (in this
case it is flag 01) each time the code is executed without any
further register or variable involved:

FC?C 01
FS 01

...may be it is useful in some cases...

Cheers!
Meino
by mcc
Fri Nov 16, 2018 9:14 am
Forum: Usage tips, tricks and problem reports
Topic: All calculation are equal but complex number are more equal...?
Replies: 11
Views: 714

Re: All calculation are equal but complex number are more equal...?

Hi, The real HP-42S does the same thing. ...repeating (possible) bug/annoyance with a new implementation make not better.... ;) Here is the defintion of matrix exponential: https://en.wikipedia.org/wiki/Matrix_exponential Looks way more stuff as "doesn't work in general" but is far beyond the stuff ...
by mcc
Fri Nov 16, 2018 7:32 am
Forum: Usage tips, tricks and problem reports
Topic: All calculation are equal but complex number are more equal...?
Replies: 11
Views: 714

All calculation are equal but complex number are more equal...?

Hi, I have a complex 2x2 matrix on the stack, position X. It is filled with complex numbers != 0. I enter "2" and press Y^X ... and get "Invalid Type" Same setup...same matrix at position X of the stack. I press X^2 and the result is returned in the matrix. Why doesn't the first work but the second ...
by mcc
Mon Nov 12, 2018 4:51 pm
Forum: Usage tips, tricks and problem reports
Topic: How to enter a right pointing triangle into a string in prgm mode?
Replies: 5
Views: 623

Re: How to enter a right pointing triangle into a string in prgm mode?

Hi,

thank you all for the kind help! :)
May be there will a way to directly input those "
keyless" characters without hacking the code.
Thomas ?
;)

Cheers!
Meino
by mcc
Mon Nov 12, 2018 9:18 am
Forum: Usage tips, tricks and problem reports
Topic: How to enter a right pointing triangle into a string in prgm mode?
Replies: 5
Views: 623

Re: How to enter a right pointing triangle into a string in prgm mode?

hI,

yes, it is that character...but I want to insert it into a string of a program.
While in programming mode I have no curren stack / current X-value
from which I can XTOA (see my initial posting).

Cheers!
Meino