Hi @ all, I finally managed to get my hands on a Raspberry Pi and try out Mathematca/Wolfram Language with examples from the Code Gallery.
Unfortunately,the "City Tour" sample (http://www.wolfram.com/language/gallery/plan-a-city-tour/) doesn't seem to work properly on the RPI. The first CityData[] command runs fine, albeit somewhat slow, but I'm not going to complain about that...
I found that FindShortestPath[] only works with up to four points (input:"FindShortestTour[{{1, 1}, {1, 2}, {1, 3}, {1, 4}}]", output:"{6, {1, 2, 3, 4, 1}}"), as soon I go up to five or higher, the return is just the input ("FindShortestTour[{{1, 1}, {1, 2}, {1, 3}, {1, 4}, {1, 5}}]").
Although I did not expect it to make a difference, I tried it both in the Mathematica notebook interface as well as in the terminal via 'wolfram'.
Does anyone have a clue how to make the function run correctly?