Haha, Nerdwitze sind die besten. xD
e^x and a constant are walking down the street together when the constant sees
a differential operator coming their way. He starts to run away, and e^x
asks "Why are you running away?" The constant answers "That's a differential
operator. If it acts on me, I disappear." e^x says "I'm e^x, I don't have
anything to worry about." and keeps on walking. When he reaches the
differential operator, he says "Hi, I'm e^x."
The differential operator responds, "Hi, I'm d/dy".
Wir müssen [...] der Versuchung widerstehen, ein Geflecht von Gesetzen herzustellen, hinter dem eines Tages die Freiheit unsichtbar wird. - Helmut Schmidt[/size]