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For simulations I need to call functions in MATLAB and retrieve results from within a omnet++ simulation. There is documentation, however, it took me a while before I got it all working. So, I ended up with a small wrapper class that allows one to evaluate MATLAB code in a running MATLAB instance.

Because MATLAB has to start up the GUI every time the simulation starts (edit: I discovered it has a flag -nojvm -nodisplay -nodesktop which speeds this up), it gets quite slow and annoying, and thus I also looked at writing a wrapper for octave, a language that is largely compatible with MATLAB. Another advantage of using octave, instead of MATLAB is that octave is a shared library that runs in the same process, so one can pass around pointers.

By flipping a switch, the code will be either MATLAB or octave based.

The source and very simple, small examples can be found in source.tgz (5 KiB, modified on 27 January 2016, MD5 0b00489725ee2afbd929429f004c2355)

Click the read more link for some more info. read more...

2015-12-30 [E] [D]
books Comments 0

Jonas Jonasson

The Hundred-Year-Old Man Who Climbed Out the Window and Disappeared (2009)

The Hundred-Year-Old Man Who Climbed Out the Window and Disappeared cover

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2015-12-29 [E] [D]
random Comments 0

Yup, there exists a procedure for creating unicorns: "This invention relates to a method of growing unicorns in a manner that enhances the overall development of the animal." Check out patent US4429685

2015-12-21 [E] [D]
books Comments 0
Douglas Adams

The Hitchhiker's Guide to the Galaxy (1979)

The Hitchhiker's Guide to the Galaxy cover

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2015-11-19 [E] [D]
comics Comments 0

The Settle Up app is pretty useful; it lets you share bills quite easily with groups of people. It's pretty good, except for the fact it has no web interface, and thus useless for people without a smartphone (or tablet) at hand. I and a group of friends had to settle up a visit to Amsterdam, and my fingers itched to quickly jot a webpage, where you could just easily view and edit the data, and also have a set of transactions (not guaranteed to be the minimal set though).

You can try it out at http://jerous.org/tools/tab-out/tab-out.php, or even see a working, nerdy example Source is available at http://git.jerous.org/?a=summary&p=tab-out.

edit 29/01/2016: I've moved the remainder of this post to the tab-out page.

2015-11-03 [E] [D]
music,live,record,jazz Comments 0

Chick Corea and the Vigil were in de Roma. Not without me, so as usual: have a listen to it on http://audio.jerous.org/2015-cc/!

2015-10-26 [E] [D]
music,live,record Comments 0

New recording! This time of a woman with such an awesome voice it makes me almost swoon everytime I hear her: Charlyn Marie "Chan" Marshall aka Cat Power

Also now, you can listen to it: MP3 recording (58 MiB) of the entire concert with corresponding cue file, or you can just stream it! The recording was edited (converting from stereo to mono, and normalizing the sound) using sox --show-progress --norm=3 2015-10-26_Cat-Power.mp3 --channels 1 2015-10-26_Cat-Power-norm=3.mp3.

2015-10-22 [E] [D]
drawing Comments 0

Drawing

During drawing class last year, we had to do a portrait in pastel. There was this image that drew (pun intended) my attention.

Nobody knew where it was from, though we suspected it was a still from a movie ... but what movie.

This problem was resolved later when I stumbled upon the same image by accident last month. The movie was Touch of Evil, and the still http://www.imdb.com/media/rm3350515200/tt0052311.

EDIT 21/12/2015 and today they showed it in Cinemazuid for a very small price :)

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2015-09-27 [E] [D]
music,live,record Comments 0

A couple of months ago I went to see Mark Knopfler. Now, it was time to see this other legend, Joe Satriani (aka Satch), often compared to Jimi Hendrix, and teacher of many of the great guitarists (Steve Vai, Larry LaLonde, Rick Hunolt, Kirk Hammett, Andy Timmons, Charlie Hunter, Kevin Cadogan, and Alex Skolnick), and playing with many others in his G3 formation.

Like some of the other concerts I've been to, I made an MP3 recording (57 MiB) of the entire concert with corresponding cue file which contains the tracks and offsets and is supported by many players (e.g. clementine), or you can just stream it!

You can also find the opening act, Markus James there.

The recordings have been slightly edited to cut off the first 20 seconds, which were too loud, normalize the remaining part, make it a bit louder, and while we're editing and losing quality anyway, also converting to mono to save space using sox --show-progress --norm=3 2015-09-27_Joe-Satriani.mp3 --channels 1 2015-09-27_Joe-Satriani-norm=3.mp3 trim 21. (I still have the original, if you reaaally want to hear that one :))

A review:

And some photos:

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