Search found 189 matches

by mcc
Sat Feb 16, 2019 4:29 am
Forum: DM42
Topic: Math related question
Replies: 1
Views: 124

Math related question

Hi, If (for example) I integrate sine(x) from 0...180 degree with my DM42 I get: 114.591577478... If I do the same thing in RAD mode from 0...Pi -- again with my DM42 :) -- I get: 2.00000032205... If I do an RAD->DEG conversion, I get the first result back. If I divide the first example by 180 and t...
by mcc
Sun Jan 27, 2019 5:20 pm
Forum: Software Library
Topic: Displaying Strings on the Screen
Replies: 27
Views: 5367

Re: Displaying Strings on the Screen

Hi, good news! I mailed Michael today, and asked him about the problem with the limited amount of files, which could be displayed. He answered, that the limitation is due to RAM constraints and (TADA!): Subfolders kommen mit der nächsten Firmware Version, plus eine Meldung wenn nicht alle Einträge d...
by mcc
Tue Jan 22, 2019 7:29 pm
Forum: Update Announcements
Topic: UPDATE: DMCP-3.12 / DM42-3.12
Replies: 21
Views: 1586

Re: UPDATE: DMCP-3.12 / DM42-3.12

Hi, updated just a minute ago, which was an absolutely flawless process! :) One very minor """"issue"""""": The update procedure in the manual says: Activate USB disk from DM42 program "SETUP → Files → Activate USB Disk" or directly from DMCP System menu. Connect USB cable from DM42 to PC/Mac comput...
by mcc
Sat Dec 29, 2018 7:38 am
Forum: DM42
Topic: Dave Jones (EEVBLOG) tries the DM42
Replies: 11
Views: 759

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: 759

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: 759

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: 759

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: 773

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: 260

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: 854

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 ...