Wolfram Mathematica

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6:09 AM

@belisarius. I really liked the byzantine mosaic image of Flavius Belisarius you were using for your avatar. Sorry you changed it.

3 hours later…

blochwave

8:57 AM

@OleksandrR. Indeed, I was just curious to see if it overcame the compiler issues I'd been having!

Mr.Wizard

9:57 AM

I feel that this question has been unfairly down-voted:

-1

Q: Table with multiple iterators running parallel

I want to use Table to generate a list, but it only allows one iterator to run at once. As so: Table[i*r, {i, 0, 5}, {r, 0, 5}] This will run through i, then change r and run through i again etc... Giving 25 values out. But I want only 5, so i and r are changed at the same time; parallel. So i...

While the example given may have been poor the underlying question is interesting and the resulting solution seems useful.

Meta

10:18 AM

Q: Upload large amount of data more easily

Lately I came across this question with a huge amount of data which I put on pastebin here under my account. One can see that I've already put quite a few mathematica.stackexchange.com-related set of data on my Pastebin with various lengths to ease the reading of some questions. So I was wonde...

discussion feature-request

Michael E2

10:47 AM

@Mr.Wizard Me, too. (I had upvoted the Q and A already.)

Pickett

11:19 AM

@Mr.Wizard @MichaelE2 Since you understand what's good about the question, you may consider editing it so that future visitors can identify with his situation and see that this could apply to their situation as well. I particularly don't like this sentence: "But this is just an example, and in my project this way won't work."

halirutan

11:57 AM

@Mr.Wizard This is one of the voting culture cases I don't understand. We have 3 answers, 3 votes in all for the answers and the question has only 2 upvotes and 3 downvotes.

I haven't downvoted btw, because I felt that the user tried to explain his problem although, as you said, the example was not the best one.

Michael E2

12:32 PM

@Pickett Hi! I thought the question, although somewhat awkwardly expressed, was pretty clear when I read it. I suppose I could clean it up, but usually I don't want to be too presumptuous

Pickett

@MichaelE2 Hm... my first reaction was exactly the same the one expressed by halirutan in his first comment. I think the question should at least avoid that confusion in order to be up-vote-worthy.

If he had formulated the question the way he did in his answer to halirutan's comment I feel that the question would have been closed as "easily found in the documentation" and answered in a comment with MapThread. The reason why Mr.Wizard was able to write a good answer was because he went one step beyond that interpretation, and basically assumed that the OP wasn't satisfied with the syntax of the built-in options.

I guess I'm saying that I think in principle the question should be "I need to do what MapThread does but I am not happy with the syntax. For my application..."

Maybe it doesn't need editing but these are my two cents, and the reason why I neither up voted nor down voted.

Michael E2

12:53 PM

@Pickett I edited the question, but I'm uncomfortable changing the OP's example. Table[f[i, r], {i, 0, 5}, {r, 1, 11, 2}] --> f[0, 1], ... f[5, 11] seems a better one. As to MapThread, I suppose the OP didn't know about it or appreciate how it could be used. I wouldn't say it's a great question, but the downvotes seem excessive. There are worse questions that are only ignored.

Pickett

@MichaelE2 Thanks. I gave him my vote now as well so that we can consider the down votes evened out.

3 hours later…

belisarius

4:14 PM

@m_goldberg Nicolino Locche had a "parallel life" to that of Belisarius. He was the best fighter of his time and ended up poor and forgotten.

►

PatoCriollo

4:47 PM

@Belisarius Nicolino, un grande!

belisarius

@PatoCriollo Young people here doesn't know him. A pity.

@PatoCriollo The fight with Fuji was a boxing lesson for posterity

brama

5:04 PM

I am running a piece of code on a linux cluster where I specify the "walltime" for the resources. If the code continues to execute beyond walltime, it is automatically killed by the system. I know we can retrieve data incase of abort using "CheckAbort", Is there a way to retrieve data when the program is killed?

@PatoCriollo what is the motivation to change your Avatar?

belisarius

Mate (beverage)

Mate (Spanish: [ˈmate], Portuguese: [ˈmatʃi]; sometimes spelled maté in English, but never in Spanish or Portuguese), also known as yerba mate, chimarrão (Portuguese: [ʃimɐˈʁɐ̃w̃]) or cimarrón (Spanish: [simaˈron]), is a traditional South American caffeine-rich infused drink, particularly in Argentina (where it is defined by law as the "national infusion"), Uruguay, Paraguay and Southern Brazil, and to a lesser degree in southern Chile, the Bolivian Chaco, Syria and Lebanon. It is prepared by steeping dried leaves of yerba mate (llex paraguariensis, known in Portuguese as erva-mate) in hot water...

PatoCriollo

5:23 PM

@belisarius is right. Since my toothache started I could not drink any mate (beverage). First phase of root canal done this morning. Hope to be drinking mate again tomorrow.

brama

@PatoCriollo Hope it went well. Taking day off?

PatoCriollo

Indeed @brama. At home at the moment. Anesthesia is starting to wear out.

Thanks for the wishes

brama

@PatoCriollo ooh..may be you could use an ice pack!!

PatoCriollo

Good idea! I forgot I don't have that nerve any more. Cold drinks did really hurt. I'll give it a try

brama

@PatoCriollo use it from outside otherwise

PatoCriollo

5:36 PM

Pickett

5:52 PM

I have a problem with this code. Specifically the CopyToClipboard part. When I paste the expression into a notebook it becomes a string.

For example, if you first evaluate CopyToClipboard[CopyToClipboard["Range[10]"]] and then use paste in a notebook you get a textcell. How can I copy it as an expression without evaluating the expression?

Pickett

6:08 PM

Another problem with the same code that I can't solve because I'm not used to this kind of MMA programming: When it copies \" it actually copies a different character that looks like " but doesn't act as " inside Mathematica.

Mark McClure

6:26 PM

@Pickett Try this: CopyToClipboard[StandardForm[HoldForm[Range][10]]]

Or, replace HoldForm with Defer, if you'd the result to be evaluatable.

Inactive is another possibility in V10.

Pickett

@MarkMcClure Defer was exactly what I wanted, thanks!

Mark McClure

Awesome!

I'm not sure what you're talking about with the \" issue but, you know slashes don't behave as normal inside a string literal - right?

Try CopyToClipboard["1\n2"] and then paste to see what I mean.

Pickett

This is the issue:

@MarkMcClure But it was solved as well with your StandardForm+Defer code.

Mark McClure

Cool! Still try replacing the single slash with a double, i.e. \ -> \\

Pickett

Sure, I will remember this also until the next time I run into the same problem :)

Mark McClure

6:40 PM

OK - have fun!

2 hours later…

Szabolcs

8:19 PM

Hi @Mark, do you happen to know anything about this problem?

blochwave

@OleksandrR. Hi Oleksandr - are the NelderMead problems you've been having similar to those in my update to the question? (I've only just returned to the problem properly after a week off following a bicycle accident!). The error seems to be something to do with the ReturnValues option, at a guess?

3 hours later…

acl

11:18 PM

Why is it so hard to understand that a) no code makes a question impossible to answer, c) 150 lines of patterns also makes it impossible to answer?

halirutan

@acl Because option b), going through my own code bit by bit, strip it down and think about what it does, almost always solves the problem and doesn't require a question at SE any more :-)

So we get all the a's and c's.

@acl But as I see this it shouldn't be your concern. @Szabolcs asked for code and therefore, he should answer ;-)

acl

@halirutan Good point. He's also a physicist, too. What more does he need to spot the answer?

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