Search found 29 matches

by ijabbott
Wed Feb 14, 2018 5:17 pm
Forum: Usage tips, tricks and problem reports
Topic: Random numbers
Replies: 7
Views: 290

Re: Random numbers

Some STM32 microcontrollers have a built-in hardware RNG. If the DM42 has one, perhaps the shell_random_seed() function should use it.
by ijabbott
Wed Feb 14, 2018 5:09 pm
Forum: Usage tips, tricks and problem reports
Topic: Random numbers
Replies: 7
Views: 290

Re: Random numbers

Just use 0 SEED. That seeds the random number generator using the real-time clock. How exactly it does this depends on how the shell_random_seed() function is implemented, and that is part of the platform-specific code, so we don't know (yet) how this works on the DM42. It doesn't seem to work on D...
by ijabbott
Tue Feb 13, 2018 6:13 pm
Forum: OFFIMG library
Topic: A few to get you started
Replies: 73
Views: 2673

Re: OFFIMG: Leibniz and Hewlett Re: A few to get you started

Is it just me- or are the attached images being scrubbed for everyone? I can see a broken image... If you right click it and open in a new tab or new window, you get a web page on Dropbox showing a picture of a Batmobile. It's the right size and looks black and white, but has been converted to a JP...
by ijabbott
Tue Feb 13, 2018 12:35 pm
Forum: Update Announcements
Topic: DM42 Firmware V3.3 available
Replies: 19
Views: 652

Re: DM42 Firmware V3.3 available

I had to press the RESET button twice. I used dfu-util on Linux for a change (because I hadn't tried it before, having previously used dm_tool on Windows and Linux). I pressed the RESET button once after dfu-util finished flashing the firmware. Then a message was displayed telling me to press the RE...
by ijabbott
Wed Feb 07, 2018 6:18 pm
Forum: Discuss!
Topic: Petition to allow RPN calculators in UK public examinations
Replies: 10
Views: 347

Re: Petition to allow RPN calculators in UK public examinations

https://www.gov.uk/government/consultations/regulating-use-of-calculators-in-new-gcses-as-and-a-levels Thank you for this. Problem is, I've read through it now and I'm none the wiser about what the consultation was about or what the outcomes were. Democracy, ladies and gentlemen. I think the consul...
by ijabbott
Wed Feb 07, 2018 3:09 pm
Forum: Discuss!
Topic: Petition to allow RPN calculators in UK public examinations
Replies: 10
Views: 347

Re: Petition to allow RPN calculators in UK public examinations

There was a consultation on regulating the use of calculators in GCSEs, AS and A levels a couple of years ago.

https://www.gov.uk/government/consultat ... d-a-levels
by ijabbott
Wed Feb 07, 2018 2:59 pm
Forum: OFFIMG library
Topic: Iconic Space History Photos
Replies: 25
Views: 1085

Re: Iconic Space History Photos

dlachieze wrote:
Wed Feb 07, 2018 9:32 am
the Picture of the Day:
Great! It would be nice to have the interior shot with the "DON'T PANIC!" sign, but I don't think that would be readable after the dithering process.
by ijabbott
Tue Feb 06, 2018 11:55 pm
Forum: OFFIMG library
Topic: Soviet Spring Festival bitmap
Replies: 3
Views: 241

Re: Soviet Spring Festival bitmap

Thomas Okken wrote:
Mon Feb 05, 2018 2:19 am
(Also, all the Soviet postage stamps I've seen had CCCP and the denomination on them, and this picture has neither.)
I think the UK is the only nation that omits its name from its postage stamps.
by ijabbott
Sat Feb 03, 2018 10:42 am
Forum: OFFIMG library
Topic: Calculating tools
Replies: 15
Views: 665

Re: Calculating tools

I think that Time Voyager story would have been a bit too geeky for the Omni audience! I tracked the story down though: Newton's Gift by Paul J. Nahin. It was reprinted in a couple of his books, "Time Machine Tales" and "Number Crunching". (The "Number Crunching" book is mostly non-fictional essays,...