Ísland
styofa doing anything

if i look back, i am lost
ojovivo
$LAYYYTER

izzy's playlists!
will byers stan first human second
Lint Roller? I Barely Know Her
NASA

roma★
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TVSTRANGERTHINGS

Origami Around
Show & Tell

❣ Chile in a Photography ❣
"I'm Dorothy Gale from Kansas"
noise dept.
Misplaced Lens Cap

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祝日 / Permanent Vacation
trying on a metaphor

seen from United States
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seen from United Kingdom
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seen from Australia
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seen from Spain
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seen from Iraq

seen from Türkiye
seen from Brazil
seen from United States

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@nvas
Ísland
For my notebook..
Emacs Key bindings on Gtk
To enable emacs key bindings in gtk (i.e., all windows, forms etc.) run:
gsettings set org.gnome.desktop.interface gtk-key-theme "Emacs"
To switch back:
gsettings set org.gnome.desktop.interface gtk-key-theme "Default"
They only thing I find hard to get used to is that c-w does not work for closing tabs! But again..
I basically use OS X now. Fresh install of Elementary to use Renoise, SunVOX, BitWig, Seq24 and PureData. Music production Linux style.
yay! Any screenshots/tunes?
XML vs JSON
http://lemire.me/blog/archives/2010/11/17/you-probably-misunderstand-xml/
http://blog.jclark.com/2010/11/xml-vs-web_24.html
http://visitmix.com/writings/the-rise-of-json
Node Labs
Interesting: Node Labs.
Other stuff:
http://shapeshed.com/command-line-utilities-with-nodejs/
http://stackoverflow.com/questions/2353818/how-do-i-get-started-with-node-js
Parameter directions in Vala
A method in Vala is passed zero or more arguments. The default behavior when a method is called is as follows:
Any value type parameters are copied to a location local to the method as it executes.
Any reference type parameters are not copied, instead just a reference to them is passed to the method.
This behavior can be changed with the modifiers 'ref' and 'out'.
'out' from the caller side: you may pass an uninitialized variable to the method and you may expect it to be initialized after the method returns
'out' from callee side: the parameter is considered uninitialized and you have to initialize it
'ref' from caller side: the variable you're passing to the method has to be initialized and it may be changed or not by the method
'ref' from callee side the parameter is considered initialized and you may change it or not
Example:
The treatment of each variable will be:
"a" is of a value type. The value will be copied into a new memory location local to the method, and so changes to it will not be visible to the caller.
"b" is also of a value type, but passed as an out parameter. In this case, the value is not copied, instead a pointer to the data is passed to the method, and so any change to the method parameter will be visible to the calling code.
"c" is treated in the same way as "b", the only change is in the signalled intent of the method.
"o" is of a reference type. The method is passed a reference to the same object as the caller has. The method can therefore change that object, but if it reassigns to the parameter, that change will not be visible to the caller.
"p" is of the same type, but passed as an out parameter. This means that the method will receive a pointer to the reference to the object. It may therefore replace the reference with a reference to another object, and when the method returns the caller will instead own a reference to that other object. When you use this type of parameter, if you do not assign a new reference to the parameter, it will be set to null.
"q" is again of the same type. This case is treated like "p" with the important differences that the method may choose not to change the reference, and may access the object referred to. Vala will ensure that in this instance "q" actually refers to any object, and is not set to null.
An example of how to implement method1 is shown above. When setting the value to the out argument "b", Vala will ensure that "b" is not null. So you can safely pass null as the second argument of method_1() if you are not interested by this value.
Computer Scientists with a Sense of Humor!
It is often said that, in order to be successful, above all, one needs to have a good sense of humor. Here are some excellent examples of the practice by Donald E. Knuth.
The delivery speech delivered by Herbert S. Wilf at the birthday conference (2002) in honor of Don, at Stanford, contains many such instances:
http://www.math.upenn.edu/~wilf/website/dek.pdf
There is also his (indirect) response on a stackoverflow question:
http://codehaus.blogspot.com/2012/03/note-from-donald-knuth-about-taocp.html
Haven't gone through TAOCP yet, but his sense of humor and personality shine pervasively through other manuscripts I've seen.
...It would hardly be a waste of time if sometimes even the most advanced students in the cognitive sciences were to pay a visit to their ancestors. It is frequently claimed in American philosophy departments that, in order to be a philosopher, it is not necessary to revisit the history of philosophy. It is like the claim that one can become a painter without having ever seen a single work by Raphael, or a writer without having ever read the classics. Such things are theoretically possible; but the 'primitive' artist, condemned to an ignorance of the past, is always recognizable as such and rightly labeled as naïf. It is only when we consider past projects revealed as utopian or as failures that we are apprised of the dangers and possibilities for failure for our allegedly new projects. The study of the deeds of our ancestors is thus more than an atiquarian pastime, it is an immunological precaution.
― Umberto Eco's witticisms are fully applicable in the realm of academic research in computer science and engineering. As scientists, being aware of great (and not so great) works of the past is of paramount importance. It is the tool we rely on as enabling force for future synthesis and broader impact. Of course, there are people who believe that reading old work may have the opposite impact; in particular, it hinders creativity and out-of-the-box thinking. However, I firmly believe that aspiring researchers need to make sure they combine both: on a daily basis, strive to spend some time digesting, familiarizing with or analyzing ideas from the past, and time synthesizing, creating, or expressing new ideas. When people don't invest time to study the classics, as Eco describes them, they are condemned to reinvent ideas from the past, and, to paraphrase Henry Spenser, they usually do so very poorly. This is completely independent of whether one's focus is on art expressions, engineering artifacts, research ideas or athletic achievements.
Excerpt is from Eco, Umberto: The search for the perfect language. Oxford: Blackwell, 1995.
From Matt Might! I am curious to hear what other people think.
Proof General, 24-yr-old Emacs and a Rooster Go To..
Well.. they actually crash the party...
(alternate titles were (1) how to install emacs 24 + Proof General + Coq (2) how to make emacs24 + Proof General + Coq not crash!)
And a screen capture of he final result, just to tease you out..
The Beale ciphers are a set of three ciphertexts, one of which allegedly states the location of a buried treasure (Wikipedia citing a 2011-worth of over USD$63 million). The history is interesting, since we know only some information about the origin of the cyphertexts. Notable efforts include UNIVAC's Carl Hammer, who leveraged supercomputers of his era but did not find interesting patterns, and James Gillogly of Kryptos and Voynich fame , who debunnked them as hoaxes.
Peter Purgathofer, an associate professor at the Vienna University of Technology, used legos to hack Amazon’s Kindle e-book security!
A journey from Edinburgh to Skye where Danny finds some of the most unique and remote 'street' riding along the way.
July 30, 1956: After the Stockholm, a Swedish liner, collided with the Andrea Dorea, an Italian cruise liner, killing 51, the damaged ship was dry-docked for repairs while its only Spanish seaman visited Linda Morgan, a 14-year-old American girl he rescued who spoke Spanish and was initially reported dead. In the crash, she had been “transferred from her berth on the Italian liner by the twisted steel of Stockholm.” Photo: Carl Gossett/The New York Times
Growing a language by Guy Steele. Incredible talk!