Wolfram Mathematica

3:18 AM

@halirutan It seems better behaved on Windows. I think Thick is the default, so I get better results with: Plot[{Sin[x], Cos[x], Tan[x]}, {x, 0, 2 Pi},
PlotStyle -> {Thickness@.01, Dashed, Red}]

@MichaelHale I tested on my Mac and everything seems fine there.

@MichaelHale The most impressing part are the dashed ticks.

Q: Why PlotStyle->Dashed make everything dashed?

For the record: "Define right side" .A comment on mathematica.stackexchange.com/a/65082/193

6 hours later…

blochwave

9:02 AM

Bug introduced in 10.0.0 -- appears to affect Linux only. It has been really strange for me. I am not sure it's regression after v10.0.1, or something went wrong with my system. After running this simple code b = Plot[x, {x, 0, 10}, Frame -> True, PlotStyle -> Dashed] my Mathematica window ...

You'll also notice that the cell borders down the right hand side in MMA also end up dashed!

3 hours later…

12:19 PM

@blochwave Haha.. nice. Thanks for the link. How easy everything would be iff Wolfram had a public issue tracker.

kirma

Maybe people could create a "shadow issue tracker" ...

@kirma I'm not sure we don't get sued for damaging an otherwise perfect public image

but this would clearly be fun. Start with all things that are tagged as "Bug" here

1:03 PM

Easiest way to partition an association into a list of single length associations? <|"a"->2, "b"->5|> ---> {<|"a"->2|>, <|"b"->5|>}

Map[Association]@*Normal

1:37 PM

2 hours later…

Wolfram Blog: Using Arduinos as SystemModeler Components

4:06 PM

HostedRedmine.com could be a good start for a public issue tracker.

Wolfram Blog

posted on November 07, 2014 by Leonardo Laguna Ruiz

With the new, free ModelPlug library for Wolfram SystemModeler, you can connect Arduino boards to simulations in SystemModeler. Arduinos interface easily with input and output components, so you can integrate them into SystemModeler models, for example, to operate lights, run servos, and monitor sensors, switches, and potentiometers. With the ModelPlug library, you can freely mix [...]

4:23 PM

@MichaelHale I've had an experience doing that with another software company. They went to court and the judge decided to shut down the site IN ONE DAY

They haven't shut down M.SE because of the bug tag.

@MichaelHale SE is a company behind a solid legal wall. Our site will be a nut floating in the storm

@belisarius Why wasn't it covered by the right of free speech?

@Pickett Because you'll need to be very very very careful to restrict yourself to the legally available info. You can't inspect code, for example. You can't mention undocumented things. You have to insert the trademark sign on every single company/product mention. Etc. They don't mess with sites that don't have impact on the community, so you may survive iff you're small enogh.

4:42 PM

ok, I see.

1 hour later…

A: Examples of mathematical discoveries which were kept as a secret

5:49 PM

@Pickett You may want to know something more about WRI practices:

The writing of Stephen Wolfram's book A New Kind of Science involved Wolfram Research employees. Stephen Wolfram considers all proofs done by these employees to be covered their NDA, which is exemplified by Matthew Cook's proof that the cellular automata Rule 110 is Turing complete. That proof wa...

@belisarius Which is?

OK, so I think I see what you mean. I was confused because that is my answer that you linked to. I actually sort of understand that he wanted to have some unpublished results for his book, but ten years is a long time.

6:16 PM

@MichaelHale That tag should be useful for WRI. I certainly hope they keep on eye on it ...

The majority of those posts constitutes a high quality bug report, vetted by the community. People often dig into the root cause of the bugs and sometimes they even provide fixes.

I'm sure they don't get the same quality of feedback through normal support channels.

Could someone please try testing RLink on Linux with M10.0.1? Just evaluate Needs["RLink`"]; InstallR[] and see if you get any errors. No need to install R manually. It will auto-download a paclet to $UserBaseDirectory.

@Szabolcs I already did some weeks ago and it worked

Let me try again

Sure, it would be nice to have one, public centralized tracker to help prioritize fixes though. Like, say there is a bug here with 10 votes and they have a bug internally that was submitted three times. If they only have time to fix one should they fix the bug that was submitted three times or the one that has 10 votes here?

@Szabolcs all good

6:36 PM

@Rojo with 10.0.1 or 10.0.0?

What Linux distro?

6:55 PM

Could someone try this with Ubuntu 14.10 and Mma 10.0.1

7:08 PM

@Szabolcs, Fedora 10.0.1

Fedora 20

7:46 PM

@Rojo Thank you!

1 hour later…

9:09 PM

Initial concept art for desert city level

9:24 PM

Hi all, is anybody here using the CUDA stuff for real?

(and second does it even work on linux?)

@Szabolcs @halirutan does the CUDA stuff work reliably on Linux?

OK. Has anybody ever used the CUDA stuff in Mathematica?

chuy

9:39 PM

I have

and on Linux

blochwave

@acl I'm about to!

@chuy thanks! so, it works OK right? what card did you use?

@blochwave OK, have you tested it? I am trying to work out how reliable this is before investing a couple of days of work

chuy

I used in on a couple of cards, I unfortunately forget which ones

9:54 PM

@acl Yes it works, but never out of the box since the CUDA libraries are not at the expected place in Ubuntu

@chuy OK thanks

chuy

I didn't do anything serious, but I could run some high powered stuff like the CUDAFluidDynamics example with out much issue

@halirutan aha OK. Well I just tried on SUSE and it works. Once I install Ubuntu I'll ask you for the details (if you have them)

@chuy OK, thanks

@acl Yes, and we have a QA too about this.

@halirutan ah

A: Mathematica cannot find CUDA driver

9:56 PM

Please check where your libnvidia-tls.so.* and your libcuda.so is installed. When I'm not mistaken, they are under /usr/lib in ubuntu. Now read this tutorial and find that Mathematica expects these libraries to be in /usr/lib64 for a 64bit Linux. Therefore, close Mathematica and open a terminal ...

Q: Mathematica cannot find CUDA driver

I have successfully installed CUDA 5.0 on my Ubuntu 12.10, with driver 304.54, toolkit and samples. Running deviceQuery gives me a successful output: Detected 1 CUDA Capable device(s) Device 0: "GeForce 9500 GT" CUDA Driver Version / Runtime Version 5.0 / 5.0 CUDA...

linux cudalink

ha yes

10:35 PM

@acl I have not used it seriously, and I have never used it on Linux.

@Szabolcs ok, thanks

11:05 PM

I just noticed that Interrupt Evaluation is missing from the Evaluation menu in 10.0.1. I'm on OS X. Is it the same on Windows and Linux and on 10.0.0?

Note that Interrupt Evaluation is not the same as Abort Evaluation.

11:18 PM

@Szabolcs On OS X 10.0.0 there is only Abort Evaluation in that menu.