Wolfram Mathematica - 2013-12-21

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12:08 AM

@Szabolcs have you checked out: youtube.com/watch?v=wZ5qPRHsM7M? Otherwise I just want behaviour like I have in python with Pandas, which has lots of great examples. Basically it fills my last reason for using other platforms -- which is when I basically want a nice api for doing spreedsheet like operations on simple data

12:20 AM

@belisarius yep

@Gabriel haven't seen it yet, thanks for the link!

@belisarius spelunking ...

@Szabolcs Oh, thanks, but late. I wanted to make an experiment about upvoting one day and downvoting the next. But the date already changed 20 mins ago. It'll have to wait :(

@Szabolcs spelunking what?

@belisarius regions

@Szabolcs :) those names look very interesting, yes

I wonder how a parametric region should be defined

15 hours later…

3:15 PM

@halirutan Do you know if its possible to acquire or set up a content editor in Joomla that is similar to what we have on Mathematica.SE? Since I post a lot of Mathematica-stuff on my website, I'd like to streamline content authoring if possible.

Sjoerd C. de Vries

3:38 PM

Another glimpse of the upcoming "insanely ambitious" new stuff":

venturebeat.com/2013/11/29/…

@SjoerdC.deVries I think this gives a hint as to what's wrong with this picture

4:06 PM

Hello,

I have not done much with symbolic calculations in MMA and I have a question

is there a simple way to change coordinates in parial equations?

partial*

I mean dF(x,t)/dx --> dF/dx2 * Dx2/Dx + dF/dt2 * Dt2/Dx

where D i total and d - partial derrivative

in fact the don't have to be D anywhere, but that's not the point

5:13 PM

@SjoerdC.deVries he's lost the plot completely, hasn't he?

@Szabolcs what an abolute waste of time for all involved!

5:31 PM

p.s. nvm I''ve got this :P

6:11 PM

@acl Perhaps that's why they included this to "right" the wrong? :P btw, why is that picture even there? The language is not even Mathematica!

6:29 PM

@rm-rf I guess maybe her name is Ruby

"Wolfram Universal Platform" is the most horrible product name ever

Jacob Akkerboom

hm, no hats here?

6:46 PM

@JacobAkkerboom headgear is against our constitution

Jacob Akkerboom

Ai... well, at least I don't have my hat on really :P

It's more like a badge like this :P

Sjoerd C. de Vries

7:08 PM

@acl @OleksandrR. I'm so afraid this will be the umptieth empty PR shell. When W|A was announced the hype they made was so huge that many people thought it would be the new supermind that was going to take over the world. Nothing wrong with W|A, but after such an amount of beating your own drum what came out was a bit disappointing. “The noisiest drum has nothing in it but air”

7:27 PM

@SjoerdC.deVries I agree. It's hard to take anything that Wolfram says seriously any more now that his ego has surpassed his own personage and extended into extremely hyperbolic marketing statements as well

Sjoerd C. de Vries

@OleksandrR. I have seen quite a few very useful new features in what has come into the open of v10, but nothing that hints at the enormous game changer that's being suggested. I hope for the best, but fear the worst.

@Szabolcs Booooo indeed. What an act of senseless vandalism

I worry that this kind of thing will also be counterproductive in that it will alienate new users whose expectations turn out not to be justified. Mathematica has gained a fiercely loyal user community for being an ambitious but realistic product, with compelling but honestly described advantages over the competition. When these new users find that Wolfram Whatever is "just" a very high-level scientific/technical programming language and CAS, they are going to be disappointed.

In particular, as users we know there are many rough edges despite the claims of perfection that Wolfram likes to make. This is not going to come across very well to users who have only heard such claims

7:52 PM

@bobthechemist I don't use one personally, but have you tried searching the extensions for Joomla. For instance this one looks promising.

@rm-rf It's boobs & programming.. who cares about the language anymore.

Sjoerd C. de Vries

@OleksandrR. Exactly. I wonder what the hopeful newcomers will say if they discover that this "apps within minutes" programming language comes with 11,000 pages of documentation...

8:09 PM

@SjoerdC.deVries ...and that on Linux the Documentation Center is a mess ;-)

Sjoerd C. de Vries

@halirutan Didn't know that. I'll stick with Windows then.

BTW, whats wrong with the DC?

@SjoerdC.deVries The GUI is not working correctly. When you navigate through links etc, the top of the DC with the URL and the bread-crumps is not updating correctly.

(Since version 6 btw, and I reported it in every pre-release)

Sjoerd C. de Vries

bummer

@SjoerdC.deVries That's why I'm particularly pleased every time Wolfram announces another upcoming wonder of the world, because the old bugs are not fixed. Even if it's just such a useless OS like Linux.

Sjoerd C. de Vries

@halirutan Well, at least rumors have it we get Undo

8:23 PM

@SjoerdC.deVries I don't use undo. Every line I write is correct ;-)

Sjoerd C. de Vries

;)

Jacob Akkerboom

8:36 PM

@halirutan Please don't talk about undo. As Mathematica does not have this feature, it is off topic for this site.

3

@JacobAkkerboom That is a sound argument!

8:52 PM

@halirutan Where is the programming part?

@belisarius Don't know.. I'm still looking at the boobs.

@halirutan Just under the google glasses

No, those seem eyes. My anatomy knowledge is nil

9:22 PM

Hello!

Sjoerd C. de Vries

@simon howdy

Hi @Sjoerd

Sjoerd C. de Vries

How's life nowadays?

Just been reading the article you linked

Sjoerd C. de Vries

The VEST one you mean?

Oh, the one in chat

Hi mr B

9:29 PM

hi all

Yes, the "insanely ambitious" stuff

Hi @belisarius

Sjoerd C. de Vries

@SimonWoods so far, it only looks like we'll be having some database additions to the language

"insanely ambitious"? Does it mention SW?

Sjoerd C. de Vries

EntityValue and all that

Ahem, not all SW's are egomaniacs :-)

Sjoerd C. de Vries

9:31 PM

To be sure: I really like that, but that won't change the world forever.

@SjoerdC.deVries Those are nice. I had a project this year that suffered a lot for the lack of relational data structures. Ended up implementing a framework. A lot of time went into that

@SimonWoods Sure :)

Sjoerd C. de Vries

@belisarius So, that work may become superfluous?

@SjoerdC.deVries Not as much as the predictive interface, anyway :)

I'm sure it will be good stuff, but the level of hype is ridiculous

Sjoerd C. de Vries

@SimonWoods unless...

there really is something in it

It's the same feeling when you buy a lottery ticket

You know it's likelier to get hit by lightning, but still you feel like a millionaire for a month

9:35 PM

Heh. It looks like it might be world-changing for flag enthusiasts

Sjoerd C. de Vries

I really, really, really hope he's got a nice trick in his sleeve coming up

@SimonWoods haha

I agree, it would be nice if it really was something amazing.

@belisarius, I discovered that the Region context is autoloaded by this:

Sjoerd C. de Vries

For a couple of days I tracked new additions to the documentation center, but it seems that Google doesn't see the new ones anymore. Perhaps they added a robots.txt file or so.

Graphics`Region`RegionInit[]

@SjoerdC.deVries Well, I wont regret dropping it. We failed to get a good SQL interface at the backend, so it requires configuring way too many things. That happens when your design is done in two days

@SimonWoods :) add that as an answer or a comment!

Sjoerd C. de Vries

9:39 PM

@belisarius I'm starting to work with SQL so I'm quite interested in these developments

@belisarius Did you see that Meta question on SE data?

@SjoerdC.deVries The good thing is that they are implementing not only relational, but hierarchical backends too

@SjoerdC.deVries Not yet

let's see

Sjoerd C. de Vries

10

A: Toward Mathematica.Stackexchange analytics

A first step to being able to do analysis with up to date data is to import the data from the API. After that there needs be a framework for working efficiently with the data in Mathematica. In my opinion, the obvious technology for this is SQL. Ultimately all data in the API should be downloaded...

2

@belisarius that one

I remember when I first looked at Mathematica it was the example in the documentation that draws the countries with their electrical outlet shapes that blew me away the most. Now I'm not impressed by that, but that's just because I've absorbed the current set of built-in capabilities. I think they're doing fine at targeting young people that are interested in programming.

In an effort to help keep things moving though, I've gotten pretty good at generating to-do lists for Wikicode. Here is what I came up with last night: pastebin.com/reTSpESW

Now I don't know how much time to spend expanding the todo list versus implementing things on the list.

@SjoerdC.deVries Oh, yes, I did the community thingie for @Anon

or is there somethiing new there?

Sjoerd C. de Vries

don't think so

I didn't know about the in-memory SQL server

Worked like a charm

9:45 PM

@SjoerdC.deVries But I HATE that verbosity

Sjoerd C. de Vries

MMA is verbose as well, isn't it?

@SjoerdC.deVries Well, I hate that too

Sjoerd C. de Vries

MultivariateHypergeometricDistribution

It isn't that bad. Better than having to decipher mvhgd which it probably would have been called if it were MATlab

@SjoerdC.deVries In fact I use shorter synonyms for almost everything

Sjoerd C. de Vries

me never

9:49 PM

But Cl is ClearAll, LPlt is ListPlot, etc

all the commands I use on a daily basis

Sjoerd C. de Vries

You get used to it, and with suggestions it doesn't take too much time typing

suggestions? what suggestions? The predictive interface?

Sjoerd C. de Vries

templates and so

@SjoerdC.deVries May be. I don't use them

Sjoerd C. de Vries

I don't use the predictive interface

9:52 PM

me neither. It can't guess my intentions. Its proposals are almost ever wrong

Sjoerd C. de Vries

Any plans for christmas?

Hey, this hat fits me!

user image

Sjoerd C. de Vries

A 9 arm chandelier?

@SjoerdC.deVries The shekel suffers from chronic inflation, I guess

@SjoerdC.deVries No, not really. Barbecue with family, swimming pool, etc (it's summer and very hot here)

Sjoerd C. de Vries

@belisarius Hmmm, I would like that

9:57 PM

@SjoerdC.deVries VERY hot

Sjoerd C. de Vries

not the "very" part though

In my next life, I should finally learn to type

user image

Sjoerd C. de Vries

and in degrees centigrade?

31.2 C. That's hot indeed

user image

Sjoerd C. de Vries

W|A in MMMa ;-)

10:00 PM

My thermometer was at 36C a few hours ago

Sjoerd C. de Vries

Autch. We usually try to vacation at locations with temperatures around 25 C.

@SjoerdC.deVries Yep, I can't stand this climate

Sjoerd C. de Vries

@belisarius You should be used to it by now

@SjoerdC.deVries I've been living in cold places most of my life, so not.

I can't bear it

Sjoerd C. de Vries

You mean outside of Argentina?

10:04 PM

@SjoerdC.deVries No, mostly here, but in the "far south"

windy and cold

Sjoerd C. de Vries

tierra fuego

Tierra del Fuego, yep. And a few places like that one

Sjoerd C. de Vries

Wow

Thought it was way south, but I see now that it is about as far south as I'm north

@SjoerdC.deVries This is a particular nasty place, thermal amplitude from +33C to -33C

Sarmiento (Chubut)

Sarmiento (antiguamente Colonia Sarmiento) es una ciudad del sur de la provincia del Chubut, en la patagonia argentina, cabecera del departamento homónimo. El conglomerado urbano se sitúa a 156 km de Comodoro Rivadavia en dirección Oeste, Sarmiento se halla enclavada en el Valle del Río Senguer que interrumpe la estepa de los lejanos horizontes. Despliegue de las Fuerzas Armadas de Argentina en Sarmiento {| class="wikitable" |- bgcolor="#ececec" |+Ejército Argentino |-javascript:translate() ! Unidades de la Guarnición Militar Sarmiento ! Sigla |- | Regimiento de Infantería Mecanizad...

It's interesting in most cases how much more regulated the temperature in the southern hemisphere is than the north. I'd guess the amount of water. en.wikipedia.org/wiki/File:MonthlyMeanT.gif

Sjoerd C. de Vries

10:14 PM

Petrified Forest, what a landscape

@SjoerdC.deVries Yep. very nice. Somewhat spoiled due to pillage. They started protecting it a few years ago

Most of the trees are conifers. You can see a lot of petrified pine cones laying around

I read that Playa del Oro, Uruguay is a good place to retire. It is near Buenos Aires, yes?

Oops. Costa de Oro.

I was told Argentina has great steaks.

@MichaelHale Oh, It's not a place, but a region

@MichaelHale Yes, we certainly have good meat

I've yet to go south of Mexico.

Sjoerd C. de Vries

I've yet to go south of Florida

10:27 PM

Ah, I go to Orlando pretty frequently to visit my grandfather.

Sjoerd C. de Vries

been there

He lives in a retirement community in the suburbs that seems to be a good fit for him. Orlando is too big and touristy for me to live there though.

I've done all of the theme parks. When I stayed with a girl that worked at Disney I hardly left her apartment when she was working.

Sjoerd C. de Vries

I've been there for a couple of conferences and once for vacation

It'd be too expensive to live on the beach in Florida I think. I read that in Uruguay you could build a beach house for less than $100,000. I think the water gets cold sometimes though.

Sjoerd C. de Vries

Orlando, Key West, Naples, Sarasota

@MichaelHale Is it time for you to consider retiring yet?

10:33 PM

I went to St. Augustine for the first time a few months ago. It was pretty fun to see the old buildings.

@SjoerdC.deVries I was once in Disney for a conference (IBM). 10K people were there. The logistic was impressive

Well I figure if I can figure out how to get paid writing Mathematica code remotely I might as well be retired.

Because that is what I was planning on doing when I retire.

Sjoerd C. de Vries

@MichaelHale The few people that I know that get paid programming in Mathematica work for WRI ;-)

I don't think pensions are a luxury my generation will experience though.

So I'm glad my body won't wear down from programming as fast as it would in a construction yard.

Well, at least government pensions as large as some are now.

Sjoerd C. de Vries

Anyway, have to go now.Bye!

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