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Uwe Jugel
67 followers -
Senior Database Engineer at Lovoo
Senior Database Engineer at Lovoo

67 followers
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Testing my "new" network using netcat (nc)
Last week, I connected my 8-wired "phone cable" of unknown quality to two CAT6 Ethernet wall plugs. The OS then claimed I now have Gigabit Ethernet. Today I tried to verify this using netcat (see first comment). I connected my PC an Laptop to the router and...
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Useful command to help tuning your WiFi antenna
WiFi throughput depends on the placement of your router and connected WiFi adapters, i.e., the position of their antennas. I just tuned my WiFi, by testing various placements and observing the detailed signal quality in real time using the following bash co...
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Enable sectioned bibliography in LaTeX/LyX under Linux
Today I switched my dissertation workplace from my corporate MacBook to my Ubuntu Linux PC at home. Nearly everything worked fine, since I already carefully defined all figures and child documents to use relative paths. However, I got one error that puzzled...
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LaTeX \sloppy and \fussy line breaking
In my thesis, I use words like "visualization-related" a lot. Such words should not be further hyphenated, since it may look awkward. Example : manual hyphenation Words  break awkwardly like visualization-rel - ated or like visualiza - tion-related. The hyp...
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How to fix a broken Logitech mouse that is clicking multiple times on single click
My Logitech was sending false mouse up and down events to my MacBook. I first though it was a software problem or that the mouse, which I bought as used hardware on Ebay, has some broken electronic component. Other users had similar problems . However, here...
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Copy & paste tabular data to tables in LyX
As it can be cumbersome to manually transfer data from an external source to a table in LyX, here is trick to speed up the process. Let's assume the data is stored comma-separated in a text file with the following content. 1920,1080,48,24,40,45,1920,1080,0%...
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Using Skim as preview tool with LyX/LaTeX
OS X's Preview app does not support reloading of updated PDFs and has no PDFSync support. Here is quick guide to set up Skim, which is a better app for this purpose. 1. Installation Simply download and setup Skim and LyX , following their instructions. 2. S...
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LaTeX/LyX positioning foating text on top of a page
To publish preprint versions of papers, you often need to add a remark on top of the first page. If you do not want to mess around with the final PDF, there is are several ways to add floating text, with absolute positioning. Here is my current solution. % ...
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Fun with functions on WolframAlpha
Trying to plot some functions on WolframAlpha I stumbled upon this one.  f(x,y) = (x 2 + y 2 ) * sin( 1 / (x 2 + y 2 ) )  It creates some nice apparently not-fully symmetric contour plot, such as this one [1]: Here are two different views [2,3] on the funct...
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Listing code in LaTeX/LyX
In the past I used external tools to provide listings for my papers. However, with 90% of my listings being SQL today, I am regularly editing and tweaking my listings for readability, which is easier when having them directly inside my LyX document. I had t...
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