Subversion holds various information in .svn directories placed in all directories and sub-directories under version control. Sometimes it is desireable to clean out these files, for example, prior to emailing a zip of the files. I use the awesome tool Total Commander for the job.

During my Ph.D. I made a java applet demonstrating an inverse problem. This article brings the applet back. You will need a very old browser setup in order for it to work.

When washing dishes, mowing the lawn or during commute I enjoy listening to podcasts. The following is a list of my favorite podcasts. I link to their homepage, but you can most likely also find them via iTunes or whatever podcast software you happen to use.

How far can you see when you are, say, 2 meters high? Lets find out assuming that we stand on a perfect circle with perfect visibility (and that we do not have refraction).

If you use more than one computer chances are that you use DropBox to keep a number of often used files syncronized and at hand.

The following is a list of the programs and tools that I install when I get a new computer or reinstall it.

The iPad app-store is not the best with respect to search and comparison of the overwhelming number of available apps.

I had my old Windows Pocket PC 2003 stolen from my office and until now I have developed on the emulator. However, now the need for a physical device has come up and I got the HP IPAQ 214.

Project Euler problem number #24 deals with permutations in lexicographical order. A non-brute force approach involves a mixed base number system based on factorials.

To create the rotations I make a “detour” by converting the number into a string and then performing the rotations on the string.