Isn’t it wonderful, the feeling of relief? The last couple of days have been pretty tense. I’ve preparing a lecture in linear systems as part of a course at the University. More specific my lecture treated the matrix exponential and the Cayley–Hamilton theorem, if anyone should be interested in details. :) Even if I was well prepared I was very nervous before the lecture. I choose to blame it on the fact that I’ve never had a lecture in mathematics before. You don’t want to screw up any proof while you’re being supervised by the class, where your teacher is one of the “students”. Anyhow, I’ve done it and passed the course. What a relief!