数学严重退化了

我一时间居然没法完全理解这个证明。 这完全是个退化标志。

Imagine you are stranded on a desert island (without logarithm tables or computers) and--- probably due to an emotional shock---your only concern is to find out which one among numbers π^eand e^π is bigger. The solution is: take h(x)=ln(x)/x, take the derivative twice to prove that x=e is a maximum, and that gives e^π is bigger.