Wolfram Mathematica

12:03 AM

This guy never learns to format... 34 questions so far (including deleted), and not a single one was originally formatted. I've told him like a zillion times — softly, gently, harshly — never listens. It's almost as if he doesn't give a shit, but wants all the help. Then there's that accept rate too...

Mike Honeychurch

can you just close his questions?

rm -rf

I can, but that's not a solution or the right thing to do just because he's being an ass. If the question has merit, it should stay (I haven't read this one yet). It's just annoying to see his unformatted questions and unwillingness to do the very minimum — indent by 4 spaces!

Vitaliy Kaurov

12:24 AM

Take a look guys - if anyone is interested

Szabolcs

12:48 AM

@VitaliyKaurov Take a look at what @Vitaliy?

Wolfram Blog

Wolfram Blog: “What Are You Going to Do Next?” Introducing the Predictive Interface

posted on December 07, 2012 by Stephen Wolfram

There aren’t very many qualitatively different types of computer interfaces in use in the world today. But with the release of Mathematica 9 I think we have the first truly practical example of a new kind—the computed predictive interface. If one’s dealing with a system that has a small fixed set of possible actions or inputs, [...]

Mike Honeychurch

a new kind of computer interface

Szabolcs

@VitaliyKaurov I think you may have forgotten to include a link.

Mike Honeychurch

1:17 AM

Hey @VitaliyKaurov I find it hard to believe that anyone could have interpreted your comment as meaning to enter stuff like this "0>>>>> 0>>>>>> 0>>>>>> 0>>>>>> 0". This guy has got to be taking the piss.

halirutan

1:37 AM

@Szabolcs About the JavaInstall: The worst thing is, that I cannot reproduce when it happens. And then not only the Uploader doesn't work, my own package which need JLink doesn't work too.

Eli Lansey

Hi all

entirely off-topic

but, if there are any cyclists here, my brother's kickstarter (a car horn for bicycles):

kickstarter.com/projects/lansey/…

Vitaliy Kaurov

1:58 AM

@Szabolcs Sorry, forgot link, I meant this: stackoverflow.com/questions/13753599/…

@MikeHoneychurch oh yeah - utter confusion ;)

Nasser M. Abbasi

2:09 AM

@MikeHoneychurch I also find this hard to believe. But if you think that was a bad question, then you should see the kind of questions asked in the Matlab group :)

Mike Honeychurch

2:34 AM

@NasserM.Abbasi I actually didn;t take a lot of notice of the question content. After @rm-rf comment above I just had a look at the formatting and then after Vitaly's effort to try and get him to format correctly was just shaking my head :)

Michael Stern

3:26 AM

Greets. Has anybody used SocialMediaData[] recently? It's crapping out on my machine, and I want to know if it's just me.

Rojo

5:22 AM

@MichaelStern I have only tested it and it works smoothly

halirutan

Spoiler alert:

Quantity["Newtons"];
StringReplace[Names["CalculateUnits`UnitCommonSymbols`*"],
 "CalculateUnits`UnitCommonSymbols`" ~~ r_ :> r]

Oleksandr R.

8:14 AM

@EliLansey your brother is contributing to a horn arms race! :) I've seen these people who put a train horn on a car... even some who put a ship horn on there... where will it go next now that we can have a car horn on a bike?

There was even one guy who bought as surplus a specially designed horn used for the investigation of the effect of really loud noise on the integrity of various structures, and put that on his car.

►

magma

10:02 AM

I cannot find references to the SE uploader made by @Szabolcs . Could please someone point me to it?

halirutan

10:28 AM

@magma github.com/szhorvat/SEUploader

Be aware that we have an update which is not in the maintrunk.

magma

@halirutan Thank you, I found it.

magma

11:16 AM

@halirutan @Szabolcs my SE uploader works well with single images, but it beeps when given a GraphicsGrid. is this known? any workarounds?

to be specific: it beeps when given a GraphicsGrid with 2 Graph objects side by side

in a row

Mathematica StackExchange (meta)

1:12 PM

0

Q: Tag: mathematica-core

Recently a tag was created: mathematica-core Does this serve any purpose? Should it be set as a synonym for another tag? Which one?

Eli Lansey

1:40 PM

@OleksandrR. awesome!

truth is, though, this isn't like the train horns on cars, etc. which are just gimmicks. this thing is actually helpful

Oleksandr R.

2:04 PM

@EliLansey yeah, I know. I was just joking. It's a good idea... drivers aren't going to hear a little bell and the electronic horns you can get for bikes might be loud but they emit a sine wave; nothing like a horn, so drivers won't recognise it

Eli Lansey

2:40 PM

@OleksandrR. exactly!

Brett Champion

5:37 PM

@OleksandrR. Could you give a specific example, because I'm not seeing this after a quick glance.

Szabolcs

6:16 PM

@magma I know about this. It's a selection issue. When you click the GraphicsGrid, it'll have a grey outline, right? That means it's not properly selected. Try dragging the mouse over it, as if you were selecting text. If it has an orange outline, it's properly selected. Alternatively, click the cell bracket (select the cell---this is easier). Bother with the orange outline and the cell selected it will work fine.

magma

6:45 PM

@Szabolcs great! I try it now. Another issue. I have version 104, but It seems that the auto update feature to 107 does not work since the commits/master web page does not open

halirutan

@magma Works like a charm

@magma Are you selecting the cell bracket? Because this is how it works here.

Btw, I always select the cell of the image/graphics and not the image itself.

magma

@halirutan no, I just selected the grey cell as @Szabolcs said

I will try other suggested ways

how is the missing template (ctrl-shift-K) problem going? is it really true that you cannot get a template for user defined functions?

Gabriel

7:49 PM

Anybody no if their is some documentation for how objects like FittedModel are made? At first I thought they just used upvalues/downvalues ... but doesn't seem to be the case

chris

8:59 PM

hello!

kram1032

hi!

chris

I have a question about ParallelTable versus Table; on a regular basis (latest case being this amazing answer to this question mathematica.stackexchange.com/questions/15897/… ;-)) I replace Table by ParallelTable in what seems to be a trivial situation.

Gabriel

and?

chris

Then hell breaks loose and mathematica tells me (through 8 kernels!) this or that has not been defined.

Gabriel

you might need to share definitions

chris

9:03 PM

I understand that sometimes one needs to share definitions.

Gabriel

across kernels

do you have an example?

chris

But what's the logic; when do you need to and why sometimes you don't?

Gabriel

usually you need to when you use package functions with Needs ... and sometimes with compiled functions

P. Fonseca

Now waiting for M10...

Gabriel

lol

did that work in v8?

P. Fonseca

9:06 PM

You mean the custom thing?

Gabriel

sorry brain fart ... how did you customize the bar?

chris

In the instance described by the link below I am integrating BSplines numerically. Even if I DistributeDefinitions of my BSpline it still complains. While without ParallelTable its quite happy (though it takes 8 times longer!)

P. Fonseca

(The answer is correct. No special intension on placing that specific command, I just wrote 1, and M suggested PrimeQ. I went for it...)
I went to the future, and toke a snapshot!

chris

So in the example above the Q table can be parallelized but not the M table which is rather strange (??)

Gabriel

@chris I see taking a look

chris

9:11 PM

for the sake of testing you can put np=5 or something... it does not matter.

P. Fonseca

In case WRI had a similar prototype, and I end up getting in trouble for the image, I have to confess that I photoshopped it. But I really like it!

Mike Honeychurch

Is printing exported PDFs working better in 9? (mathematica.stackexchange.com/questions/3926/… ...note that none of those answers ever helped me print PDFs. Always had to re-save from another app). Could someone maybe update with an answer to this question.

chris

9:22 PM

@MikeHoneychurch not a direct answer to your question but the most annoying situation is when the fact that it will print seems to depend on the printer... you don't know if others will be able to print your paper!

Gabriel

@chris okay I have it fixed, the issue is that you are using the function name K which is a built in ... if you change it to Kvar the code works fine

Mike Honeychurch

@chris I hadn't noticed anything printer specific, only that I had made things that exported PDFs only to be told that people couldn't print the PDFs.

chris

@Gabriel thanks. I thought I had checked this but let me check again.

Gabriel

9:38 PM

@chris so? Any luck ... curious ;-)

chris

@Gabriel YES thanks! (though my solution does not seem to obey the integral equation but that's another issue ;-) )

Gabriel

@chris great ... I too have been bitten by the fact that mathematica has some common single letter built ins ...

Rolf Mertig

9:57 PM

some really nice and long names in there: StringReplace[Last[Names[# <> "*"]~SortBy~StringLength], # -> ""] &@
"CalculateUnits`UnitCommonSymbols`" gives ProtonProtonElasticCrossSectionAtCenterOfMassEnergy10GeV which beats Last[Names["System`*"]~SortBy~StringLength] by 18

Stack Exchange

Blog - Stack Exchange: Meet the new additions to the Stack Exchange clan

Joe Humphries on December 07, 2012

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Szabolcs

10:39 PM

If anyone has had problems with the image uploader complaining in the message window that you need to run InstallJava first, please let me know! This happens occasionally in v9, but I can't reproduce it.

Is there a way to have the 1, 2 and 3 take up the same amount of space in the above example?

acl

@Szabolcs I do

Szabolcs

@acl If you can reproduce it, please send me an email. But I'l try to put in a workaround anyway

acl

10:58 PM

@all, I've just started using options in my functions (motivated by the broken template autocompletion) and I've been wondering if I can cause the options to be coloured differently in the function body. SyntaxInformationseems not to help with this

any ideas?

Szabolcs

@acl Do you mean wrong options, like it happens with system functions (wrong options are red)?

acl

@Szabolcs no, this is done by defining them in SyntaxInformation. I mean, I'd like them in a different colour in the function body; when I say eg OptionsValue[v1], I want v1 to be some colour other than blue or black

Rojo

Hello people

@Szabolcs Hey

I've had that issue some days ago

Just once, I reinstalled, it got fixed, that's all I can remember sorry

Szabolcs

@acl if there's a way, it's well hidden

Rojo

@Szabolcs Could you paste that line of code?

acl

11:08 PM

@Szabolcs couldn't find it either

Szabolcs

@Rojo It was a response to this message.

Rojo

And what about the grid thing? Solved?

Btw, how do you handle when you want to share a notebook or cdf that uses a custom stylesheet?

Szabolcs

@Rojo Nope ... what I really want is aligning things like this:

[Button] <-- stretchable space --> [Button] [Button]

when the width of the complete thing is determined by some outsize container: typically a window (notebook) or a Grid/Row/Column cell

What annoys me most on OS X is that shortcut keys like Cmd-C often just don't work the first time I use them ... finally figured out why. When using the touchpad to do a selection, there's a release timeout for the mouse button on the drag action. If the button is held down, keyboard shortcuts don't work.

acl

11:25 PM

@Szabolcs can you describe this in more detail? I don't see it

I mean, I make a selection by holding down the trackpad key, release it and then press eg cmd-T as fast as I can; a new tab appears in my browser

Szabolcs

@acl Actually, it seems to be a problem with Mathematica only. Try this: click the trackpad button, drag to select, now keep holding the trackpad button. While you are holding it, press Cmd-C. Note that it doesn't work. You can see if Cmd-C works because the system briefly highlights the Edit menu.

In Safari Cmd-C works even if I'm holding the button after a selection.

acl

@Szabolcs OK yes, hadn't noticed that

Szabolcs

Now why would I keep the button holding? I don't, but I use the three finger drag usualy (I only use the actual clicking button for right click). On Windows I was used to double tap and hold but apparently this doesn't work on OS X. Anyway, it would be the same: there's a small delay before the system releases the "mouse button" when doing this, to help with dragging things before dropping them

All I noticed for a while was that most of the time Cmd-C was simply not working, and I had no idea why

Rojo

Any ideas on the stylesheet question? better to try to send the required stylesheets in a subfolder and link them properly?

or is there some easy programatic way to embed all the external styles into the notebook styledefinitions?

Szabolcs

@Rojo It's possible to embed a stylesheet, but I haven't done it

@Rojo I really don't know much about stylesheets, but when I use Format -> Edit Stylesheet, what happens is that a new Notebook[...] object appears as the StyleDefinitions object

maybe you could put the whole stylesheet there, in that option?

Rojo

11:37 PM

Yes, you're right... It seems I could go by hand replacing each stylesheet linked and putting it all there...

or perhaps I'll give it a shot to do it programatically if it could help others

Szabolcs

open, SetOptions, then save?

Rojo

The notebook that gets opened when you "Edit stylesheet" is a "viewer" for the StyleDefinitions option of your notebook

All the styles that appear there are actually inside your notebook

but if you have a style cell that actually inherits from another stylesheet (as is the case)

I need a way to copy all those external styles inside the current notebook StyleDefinitions

However, when we get to the "Default.nb" or other stylesheets that come with MMA, it shouldn't be necessary any more (or perhaps it should. MMA9 default seems to look quite different to MMA8)

If there's a very simple way to do that I'm missing it

But sharing a notebook shoudl be something common... So I wonder

Szabolcs

I really never used stylesheets

Rojo

@Szabolcs Mostly programming and input and output cells in your notebooks then?

Szabolcs

@Rojo Yep. Not much text. Some notes that could be comments in some other programming languages. Also sections, subsections, sub-subsections ...

I only used the builtin stylesheets

acl

11:51 PM

I tried using and making stylesheets but after a while gave up precisely because I could not work out how to make notebooks self-contained. They broke whenever I sent them to others

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