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1:15 AM
Does anyone have any experience with VoronoiMesh? I would like to replicate the 3rd example under "Applications -> Other" where a point robot takes a random route rather than the shortest path.
 
 
3 hours later…
4:20 AM
@PlaysDice I have been pondering the same question...
and I don't have an answer to that.
Z3 might be reasonably easy to use as a direct replacement for purely Boolean problems...
 
4:49 AM
@kirma. I went and made a very crude parser that takes a limited set of Mathematica input (multivariate equations and variable definitions) and outputs a .z3 format text file than can be handed to z3 on the command line. It aint pretty (and I need to hand edit some things in the .z3 file) but it works and now saves time.
 
5:19 AM
@PlaysDice Hmm. I hope somebody has time to do direct bindings and such.
 
 
5 hours later…
10:10 AM
@bobthechemist AdjacencyMatrix[g][[v]]["AdjacencyLists"] gives the list of indices of vertices adjacent to the vertex with index v, if that's any help.
 
 
2 hours later…
12:18 PM
0
Q: SE-Uploader: Safety issues when sharing code

halirutanBackground Some might have noticed that I was working on completely revising the SE-Uploader. I will make a separate thread about this, but an important change is that we can now share Cells or Notebooks as easy as it is with images. If you want an example evaluate the expression below: Import[...

 
1:02 PM
Does somebody have a consistent idea of how RGBColor and such are actually interpreted in Mma? I have strong hunch same colour space is not applied when I use it with ColorDifference, and, say, Graphics.
Something is not quite as it should (sRGB is implied at times, but at times, it would seem possibly a linear RGB colour space is used), and it's not consistently documented anywhere.
 
 
1 hour later…
2:23 PM
@MichaelE2 Yes, I think that does. Thank you.
 
 
1 hour later…
3:33 PM
And in user.wolfram.com I also already can download 10.1 ...
3
 
3:52 PM
0
Q: New SE-Tools - formerly known as SE-Uploader

halirutanI have completely revised our old SE-Uploader and finally finished putting all together in a package called the SE Tools. Therefore, we can now provide additional features because the SETools` can be loaded. Currently, the uploader palette is still the largest part of the software. I have put muc...

 
4:38 PM
@halirutan Thanks for updating the SE Uploader post. Feel free to remove the "original post" as well, or at least anything that's not relevant any more. The less clutter to confuse people the better.
 
@RolfMertig cool! Available in my user portal too. Tks
 
@RolfMertig I can't unfortunately :( It has happened in the past that mine got stuck on older versions even after the official announcement
 
5:24 PM
ImportString["5.9e-314", "JSON"] gives me a format error :/
5.9e-32 works
 
@Szabolcs I have removed all update entries from the original post and replaced it with one clear statement where to find the current version.
@wesen Look at this:
In[24]:= $MinMachineNumber

Out[24]= 2.22507*10^-308
Therefore
but
that's how I would explain it. Your number is even smaller
 
No upgrade available for Home Edition (yet, I guess). :(
 
i see
can i change $MinMachineNumber ?
 
@wesen I'm pretty certain you can't.
 
or tweak it so it clamps the json import to it?
 
5:29 PM
@wesen No, it's fixed to your system.
@wesen How did you get those files?
 
they're generated by my webserver (in python)
i can add an epsilon but i rather wouldn't
interesting, python says float_info.min is indeed -308, but i can create -322 no pb
 
@wesen The thing is that JSON was originally invented for JavaScript. Can JS even handle numbers that small or is it restricted to long double or whatever?
 
it would restrict them, the standard allows however many digits you want
 
@wesen I just came to the same conclusion. It seems the standard doesn't make restrictions, only the implementations do.
So this seems to be a bug in Mathematica because it is clearly able to handle those numbers.
@wesen And here is the proof:
ExportString[{"number" -> $MinMachineNumber/100}, "JSON"]
ImportString[%, "JSON"]
It does happily export the small number but refuses to import it again.
 
i see
should i report it?
 
5:39 PM
@wesen I currently see no other way than to writing your own importer.
@wesen Yes, I would report it.
 
@wesen FYI this seems OK in 10.1
 
@chuy @wesen And what do praise about issue trackers?? They are a good thing. One could have looked this bug up and we would have seen that this was fixed for todays update... well well well.
And speaking of the devil, this very moment the e-mail from Wolfram arrived telling me that I can upgrade.
 
still not a bad idea to report it
 
@halirutan ok
@hali
@halirutan i just stumbled upon that one wondering if it was fixed as i don't have 10.1
 
@wesen Can you upgrade for free? Are you in a university that has Premier Support?
 
5:53 PM
i have home edition, but my user protal still show 10.0.2
i'm fine i deleted the e-322 from the DB i don't now how they got there
because they are populated from c++ anyway
 
10.1 is cool
 
cough
Home Edition upgrade is 95 euros + VAT. The same as major upgrade.
Well, it's not really expensive for me, but amount of content... is not that much.
 
@kirma You don't see the bigger picture. Release one crappy beta version and let your users pay again for the bug-fix update :-)
 
pj ot
oh it's a paid upgrade
yeah i'll probably wait for a bit
 
"I will not use this software for any purposes prohibited by United States law, including for the development, design, manufacture, or production of nuclear, chemical, or biological weapons of mass destruction."
damn, I think they caught me now!
 
6:01 PM
@kirma Oh, if it is prohibited then I guess the bad guys won't use it.
 
:)
Maybe that claim is more realistically meaningful than one Apple put on their iTunes EULA prohibiting use of it for design and control of nuclear reactors, or something like that.
@halirutan Regarding paying again for a bug-fix update... you're an optimist. I don't even expect those bugs I've reported to have been fixed. :I
This is not a fast download. 300 kB/s.
 
6:22 PM
Aand it's slowing down.
 
It's interesting to me that they now have MaximalBy and TakeLargestBy.
 
I wonder if this GrammarRules is aimed strictly at natural language (sounds like limited set of languages, really) input, or also potentially usable as parsers for non-natural languages...
 
@kirma You mean parsers for symbolic expressions instead of just strings? The whole language is based on pattern matching and transformation rules, so I see the new grammar stuff as just pushing some of that functionality down to work directly at string level.
 
@MichaelHale Mostly thinking of parsing file formats.
 
6:34 PM
@kirma Ah. Well I think a JSON parser for example would be pretty straight forward with it.
 
I must say I won't be the first person to try out to use new stuff for that. :I
 
Oh well, it looks like they did a good job with the Wikipedia stuff and they added a few smaller functions I wanted. I just started to get used to mixing in associations in my workflow, but the new stuff looks cool and I guess I want the bug fixes too. So I guess I'll pay them.
I actually fully support adding synonyms of functions and even breaking changes if the changes I have to make to my existing code make the code shorter, faster, etc.
My idea for Wikicode would be that you reference a specific revision of a module, and then you can upgrade at your leisure.
 
Why does this give the error message ""Expressions {{1,1},{2,2}} and {{},{2}} have incompatible shapes."? Pick[{{1, 1}, {2, 2}}, {{}, {2}}, {}]
 
@Pickett Pick->Possible issues->example 1
 
@MichaelHale OK so that's how that's supposed to be interpreted. I was certain it would be enough to have the same length... thanks.
 
7:06 PM
@halirutan I know, what I mean is that probably most of the old content of the answer should be removed to avoid confusion.
 
7:23 PM
FWIW this WC thread makes it sounds as if some Home Edition users are getting the upgrade.
 
@bobthechemist That's six months old thread, and 10.0.1, not 10.1.0...
I'm downloading 10.1 upgrade for Home Edition, but it's slow...
 
@kirma I would guess most of their European servers are devoted to Wolfram Alpha. I started my 10.1 after you and it's already finished and installed.
 
7:57 PM
... and it's getting slower and slower.
 
@kirma Hah, I tell my students to pay attention to what they are reading - apparently so I don't have to.
 
:)
 
8:52 PM
so is 10.1 a paid upgrade if i have 10.0.2 ?
oh i finally found the upgrade pricing, it is well hidden. it is $95 for my home edition
 
9:19 PM
There wasn't a lot of fanfare about 10.1. Just a "what's new" link to the documentation, on the front page. It isn't even easy to find the version number of the latest release on wolfram.com.
Just curious: does it superficially look the same as 10, other than the added functions?
Also a question to those who already have access to 10.1 and were affected by the PDF export bugs in 10.0.2. Are these fixed now?
 
9:35 PM
well... just found I bug with V10.1 using one of my applications... Time to debug...
 
10:17 PM
@Szabolcs That may be, but in the emails I've had, the link: blog.wolfram.com/tag/10.1 has featured more than once, with only 3 posts on the topic so far. Maybe more to come?
 
@Szabolcs Yes, the UI looks the same.
 

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