Wolfram Mathematica

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10:02 PM

@rm-rf I don't know, but I only have a single entry in the mathpass file. I had to remove the config directory and I activated 9 only afterwards. 8 still works fine. For you 8 doesn't work with 9's activation number?

rm -rf

10:22 PM

@Szabolcs It does. I'm using my university's license with v9 (and it also works with v8 and v7). However, I also have a student license that I'd like to use with v8. The reason being that I can't fire up a kernel if I'm not connected to the internet with my univ license

Szabolcs

Oh that is really annoying, I agree ...

Gabriel

@Szabolcs thanks for the help with my NDSolve question ... was bugging me all day

what was holding me back was using System`Boo to define something into the system context

everyone was getting caught up with C, but it really wasn't what was concerning me, had such trouble writing up my question clearly

halirutan

10:45 PM

Got my brand new retina display MacBook Pro and I'm a bit disappointed how V9 looks..

Gabriel

@halirutan oh uh. Blurry?

I find even the braces on the right when highlighted are blurry on a standard def monitor

halirutan

pixelized.. someone needs a photoshop filter for that. I get it for free

rm -rf

@halirutan Welcome to the club

Aug 2 at 21:00, by R.M

I got a new laptop (retina) and Mathematica looks like crap

halirutan

The upper part our site, the lower part M9

Gabriel

@halirutan well not really for free ;-) I have seen retina prices

ouch

rm -rf

10:49 PM

halirutan

@Gabriel If you put it that way..hmm I paid a lot ;-)

rm -rf

Oh, halirutan already posted it...

Well, I have a secondary monitor that's not retina, so I use mma on that...

Gabriel

maybe when they update the font rendering etc in v10 mac users can enjoy some kernel panics ;-)

rm -rf

I honestly was expecting it in v9, though... I mean, a lot of folks updated their apps within a month of launch and pushed out retina updates.

Gabriel

Maybe even with the annoying top menu bar we windows users out number you as users!

Brett Champion

11:05 PM

@rm-rf What editor is that on the right?

rm -rf

@BrettChampion macvim

acl

11:25 PM

@rm-rf and you admit it?

Szabolcs

@halirutan I guess it'll take a while:

Nov 30 at 23:28, by John Fultz

@Szabolcs Retina support is definitely on the roadmap. But don't hold your breath. Sorry, you know if I could deliver it to you quickly, I would. We'll get there as fast as we can.

@halirutan You can get a retina-capable Workbench though. You need to download Eclipse 3.8 (note, not on the main download page, and 4.2 won't work) and use the plugin version. Then apply this workaround

@Gabriel Actually I love the top menu bar on Windows. And I'm a long time Windows user.

halirutan

@Szabolcs Hmm, I usually use the CDT version of eclipse. Does it only depend on the version whether retina is supported or is it a special distribution which happens to have version 3.8?

@Szabolcs Ah, you mean the WB-Plugin does not work with Juno? That one I knew.

P. Fonseca

11:43 PM

Quick question: ReleaseHold removes only the exterior Hold. What is the safe way of removing all Holds?

halirutan

@P.Fonseca Apply it until the expression doesn't change any more..

expr = Nest[Hold, Unevaluated[1 + 1], 4]

Hold[Hold[Hold[Hold[1 + 1]]]]

In[5]:= FixedPoint[ReleaseHold, expr]

Out[5]= 2

Or use

expr /. Hold :> Evaluate

But it really depends on your situation

P. Fonseca

Thanks!

Here's a small spreadsheet interface I just did (very draft, just as a proof of concept). Refer to cells as cell[[L,C]]

cell = Table[Null, {i, 1, 10}, {j, 1, 10}];
Column[
{Grid[Table[
With[{i = i, j = j},
Deploy@Button[
Dynamic[If[cell[[i, j]] === Null, "",
FixedPoint[ReleaseHold, cell[[i, j]]]]], selection = {i, j},
Appearance -> "Frameless", ImageSize -> 50]], {i, 1, 10}, {j,
1, 10}], Frame -> All],
Dynamic@
Row[{"Cell" <> ToString[selection], ":=",
InputField[
Dynamic[cell[[selection[[1]],
selection[[2]]]](*,{(cell[[selection[[1]],selection[[2]]]]=
Unevaluated[#])&}*)], Hold[Expression]]}]
}]

(sorry, but I placed no column or line titles...)

Szabolcs

@halirutan I'm sorry, I forgot to say that it's not enough to install the Workbench plugin. You also need to install the Java dev plugin (at least it was last time I tried --- it didn't work with the CDT version only). With the Java dev plugin Workbench will work properly.

P. Fonseca

to use it, you first click on a cell 1,1, and then you type, for instance, 2

then you click on another cell, and you type 2*cell[[1,1]]

Szabolcs

@halirutan I think you just need a Cocoa version of Eclipse, and I think that the Workbench that can be downloaded from WRI is not. I installed 3.8 because it was the latest 3-series version, but I don't know which is the earliest one that has a Cocoa-based version

P. Fonseca

11:55 PM

then you click on cell 1,1, and you change its value to 2

And it works...

Can someone give it a try?

Szabolcs

Two questions:
1. Is there a v8/v9 built-in equivalent of ``Combinatorica`GraphicQ``(to test if a degree sequence is graphical)?
2. Does anyone know what algorithm `DegreeGraphDistribution` uses?

P. Fonseca

Now I need a way to insert a cell reference in the middle of the editing of another cell formula...

(shouldn't be too hard)