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by jardino
Wed Apr 22, 2015 7:39 am
Forum: Mathematica
Topic: Accessing Sloan Digital Sky Survey ( SDSS )
Replies: 1
Views: 2554

Re: Accessing Sloan Digital Sky Survey ( SDSS )

Looks interesting, Keith. I'll give it a whirl - after I've submitted my portfolio!

Alan.
by jardino
Wed Feb 18, 2015 10:15 am
Forum: General discussion
Topic: fun with RPi 2: raytracing (POV-Ray)
Replies: 28
Views: 7264

Re: fun with RPi 2: raytracing (POV-Ray)

There were some posts about POV-Ray on RPi about 18 months ago. (See http://www.raspberrypi.org/forums/viewtopic.php?p=441541#p441541 .) However, I never managed to get it to run on the early RPis I had then. Compuserve? - now there's a name to conjure with! I was a Compuserve member for several yea...
by jardino
Wed Feb 18, 2015 10:02 am
Forum: General discussion
Topic: fun with RPi 2: raytracing (POV-Ray)
Replies: 28
Views: 7264

Re: fun with RPi 2: raytracing (POV-Ray)

Thank you very much for doing that! I spent many hours running POV-Ray on my first PC - probably a '486, but I don't remember. I remember the frustration of having my computer churning away for hours on end just to produce a picture of a darkly-lit box! Anyway, I persevered and later created quite a...
by jardino
Sun Dec 28, 2014 7:50 pm
Forum: Mathematica
Topic: Latest Raspbian (2014-12-24)
Replies: 0
Views: 2356

Latest Raspbian (2014-12-24)

I've just installed this latest version of the operating system and found that my Mathematica experiences have much improved. The new GUI handles multiple open Notebooks very well - much better than previously. Also, there's a whole raft of new astronomical goodies for astronomers like me to explore...
by jardino
Mon Dec 22, 2014 7:31 pm
Forum: Wolfram Language
Topic: Mathematic query
Replies: 5
Views: 12133

Re: Mathematic query

Try with a capital "I" on "Infinity" and let me know the result.

Perhaps this query should be in the "Mathematica" topic?

Regards.
by jardino
Thu Aug 07, 2014 10:59 am
Forum: Mathematica
Topic: Mathematica 10
Replies: 0
Views: 2690

Mathematica 10

Over at Walking Randomly, Mike Croucher has been looking into some new functions introduced in the mainstream release of Mathematica 10. I have been looking into some of the same for the latest RPi release. Here are my findings so far. 1) GeoGraphics works: NL.jpeg 2) MandelbrotSetPlot works: Mandel...
by jardino
Tue Aug 05, 2014 9:31 am
Forum: Mathematica
Topic: Possible bug in RPi Mathematica?
Replies: 5
Views: 3227

Re: Possible bug in RPi Mathematica?

Seems to be fixed in latest (July 2014) release.

Alan.
by jardino
Tue Aug 05, 2014 9:28 am
Forum: Mathematica
Topic: Cannot open CCodeGenerator
Replies: 15
Views: 6330

Re: Cannot open CCodeGenerator

"DictionaryLookup" seems to be implemented in this latest release also.

I'll do more testing.

Alan.
by jardino
Tue Jul 29, 2014 9:43 am
Forum: Mathematica
Topic: Cannot open CCodeGenerator
Replies: 15
Views: 6330

Re: Cannot open CCodeGenerator

Ok. I have posted at Wolfram communities a feature request. http://community.wolfram.com/groups/-/m/t/226967?p_p_auth=MnluK0fd I agree that it seems inconsistent to say nothing left out in the press release and then lots of things intentionally left out later. For Mathematica to be useful on the Ra...
by jardino
Wed Jul 16, 2014 2:51 pm
Forum: Mathematica
Topic: Possible bug in RPi Mathematica?
Replies: 5
Views: 3227

Re: Possible bug in RPi Mathematica?

Okay, well I didn't get it throwing "PolyhedronData[" or ("PolyhedronData [") into a blank notebook, nor in the Wolfram command line. Maybe it's your variables? Try playing around with ClearAll and trying it in a new notebook? Maybe it's hardware? Is your RAM full? Do you have enough milliamps runn...
by jardino
Sun Jul 13, 2014 8:11 am
Forum: Mathematica
Topic: Possible bug in RPi Mathematica?
Replies: 5
Views: 3227

Re: Possible bug in RPi Mathematica?

Yes, it is in Mathematica Notebook.

To try to replicate the problem, all you have to do is type "PolyhedronData [" .

The opening bracket should show the symptom.

Alan.
by jardino
Thu Jul 10, 2014 4:14 pm
Forum: Mathematica
Topic: Possible bug in RPi Mathematica?
Replies: 5
Views: 3227

Possible bug in RPi Mathematica?

I've been happily exploring Mathematica on my Pi, but today came across an "INTERNAL SELF-TEST ERROR" crash which is reproducible every time I try it (on the same Pi). Here is the synopsis of the message I sent to Wolfram Technical Support: -- When exploring "PolyhedronData", I get the message immed...
by jardino
Thu Nov 28, 2013 8:35 am
Forum: Off topic discussion
Topic: What is a better brand?
Replies: 16
Views: 5008

Re: What is a better brand?

Define "better", please.
by jardino
Sat Nov 16, 2013 3:34 pm
Forum: Off topic discussion
Topic: when to use lower-case or upper-case & code practice
Replies: 74
Views: 12100

Re: when to use lower-case or upper-case & code practice

BluDragon: Your prose style has improved remarkably over the last 24 hours and I can now read your posts to their ends with little effort. Thanks! May I ask if you would write a job application, or your CV (resume), in your original style? In the days when I was hiring programmers and analysts in th...
by jardino
Sat Nov 16, 2013 9:24 am
Forum: Camera board
Topic: Daylight IR photography
Replies: 5
Views: 6471

Re: Daylight IR photography

Yes, very beautiful, Zamzara.
I can feel my wallet hungering for a Pi-Noir!
by jardino
Fri Nov 15, 2013 10:24 am
Forum: Off topic discussion
Topic: when to use lower-case or upper-case & code practice
Replies: 74
Views: 12100

Re: when to use lower-case or upper-case & code practice

When I see a message without proper capitalisation at sentence beginnings, at the personal pronoun and where convention dictates (BBC, GMT and so on) then I assume that the poster is illiterate or lazy. If laziness is the cause, then why should I expend any effort on reading the post? On this occasi...
by jardino
Thu Oct 24, 2013 9:01 am
Forum: General discussion
Topic: The busiest Pi...
Replies: 17
Views: 3498

Re: The busiest Pi...

Thanks for that, DavidS.

I think I've found it at http://www.riscos.info/packages/Graphic ... tml#Povray .

I'll download and install it and let you know how I get on.
by jardino
Tue Oct 22, 2013 3:34 pm
Forum: General discussion
Topic: USB Floppy Drive
Replies: 8
Views: 1766

Re: USB Floppy Drive

When buying pre-built Wintel computers (my latest is about 10 years old), I used to insist on them having a standard 1.44 Mb floppy drive. This used to puzzle salesmen - but please them, because of the extra £30 or so they could charge. Apart from recovering data on my own, old floppies, I was able ...
by jardino
Tue Oct 22, 2013 10:25 am
Forum: General discussion
Topic: The busiest Pi...
Replies: 17
Views: 3498

Re: The busiest Pi...

Interesting that you've got POVRay running on RiscOs.

I've been trying to compile it for Rasbian, but haven't yet succeeded. According to the POVRay forums, however, it has been done.
by jardino
Tue Oct 22, 2013 10:21 am
Forum: General discussion
Topic: USB Floppy Drive
Replies: 8
Views: 1766

Re: USB Floppy Drive

I don't have an USB floppy drive, but I've just connected an old 250Mb ZIP drive to an RPi. Via a powered hub, of course, because the drive draws 0.5 Amp.

RPi recognised it immediately and I can access my old files.
by jardino
Thu Sep 19, 2013 2:21 pm
Forum: General discussion
Topic: 4273pi: Bioinformatics education on low cost ARM hardware
Replies: 30
Views: 6055

Re: 4273pi: Bioinformatics education on low cost ARM hardwar

Works for me! And my card has nearly 20 GB to spare.

Nice home screen, too.

Alan.
by jardino
Tue Sep 17, 2013 9:05 am
Forum: General discussion
Topic: 4273pi: Bioinformatics education on low cost ARM hardware
Replies: 30
Views: 6055

Re: 4273pi: Bioinformatics education on low cost ARM hardwar

Daniel:

That's good news!

I'll check it out later.

Using the "Work Instruction" that I adapted from yours, I managed to get eight of the BLAST modules, together with SwissProt, on to my card with 5 GB to spare.

Cheers,
Alan.
by jardino
Fri Sep 06, 2013 9:20 am
Forum: General discussion
Topic: 4273pi: Bioinformatics education on low cost ARM hardware
Replies: 30
Views: 6055

Re: 4273pi: Bioinformatics education on low cost ARM hardwar

Here is where I've got to so far: 1) My first attempt at using your work instruction, when I thought I'd only filled about half of the card, was an erroneous one - in that I hadn't let script_6 run to completion. 2) My second attempt, using my modifications to your work instruction (which I've docum...
by jardino
Wed Sep 04, 2013 7:21 am
Forum: General discussion
Topic: 4273pi: Bioinformatics education on low cost ARM hardware
Replies: 30
Views: 6055

Re: 4273pi: Bioinformatics education on low cost ARM hardwar

Thanks, inder.

I've been away from the problem for a few days but hope to get back to it tomorrow (5th).

Alan.
by jardino
Thu Aug 29, 2013 8:49 pm
Forum: Other projects
Topic: Raspbery Pi cluster rack
Replies: 2
Views: 2167

Re: Raspbery Pi cluster rack

It can be a true cluster, of the Beowulf variety. Some people around here call such clusters of RPis "brambles".

Have a look at http://www.raspberrypi.org/phpBB3/viewt ... it=bramble .

I think that the main purpose is to learn about parallel computation.

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