Harvard CS75

Just some short notes/comparisons about watching the CS 75 course of Harvard university (you can download it at cs75.tv):

  • There is more interaction between students and professors than here. Students here prefer not to question lecture content and questions to the audience have higher response times than in Harvard. I think one of the major reasons include the missing reaction to problems (“XY at slide Z is incorrect” will be ignored even though the lecturer agreed at the lecture).
  • The professor is well prepared and has a specific topic to finish in one lecture. Whereas the second is true in most cases here, the first one cannot be satisfied by slides of previous years and out-dated course websites
  • Specifically about this topic: The first OOP source code of PHP you will see here is out-dated PHP 4. Even though there are more lectures, topics like scalability are not part of the course here.

Liked it 🙂

Harvard CS75

Inkscape PDF Export stopped working

Save As Copy with extension pdf worked very well for almost a year. Suddenly it stopped working. PDF export resulted in File {FILENAME}.pdf could not be saved. Very uncomfortable for me as far as I am using SVGs on a regular basis.

The internet is filled up the bug reports… some are having specific plugin problems, some only get blank PDF pages. Well… this Inkscape 0.47 bug report got the solution for me. Remove the preferences.xml file (for me ~/.config/inkscape/preferences.xml) and Inkscape will create a new one when starting up.

What is the reason? I think some important package got upgraded and Inkscape is holding some old, conflicting information about this package.

Tags: Inkscape 0.47 pdf export SVG could not be saved preferences cairo

Inkscape PDF Export stopped working