# 間時間表 3

Pure Maths 10

 30 minutes Pure Maths: Assignment 10 30 minutes Pure Maths: Assignment 10 30 minutes Pure Maths: Assignment 10 30 minutes Pure Maths: Assignment 10 __________ _________________________ 30 minutes Pure Maths: Assignment 2 30 minutes Pure Maths: Assignment 2

（LWT：不是呀。有一個問題，就是就算只做最新的一份功課，也沒有足夠的時間。那何來有時間「歸還」以前的功課呢？）

— Me@2010.04.30

# Fractional calculus Nature of the fractional derivative

An important point is that the fractional derivative at a point x is a local property only when a is an integer; in non-integer cases we cannot say that the fractional derivative at x of a function f depends only on the graph of f very near x, in the way that integer-power derivatives certainly do. Therefore it is expected that the theory involves some sort of boundary conditions, involving information on the function further out. To use a metaphor, the fractional derivative requires some peripheral vision.

— Wikipedia on Fractional calculus

2010.04.30 Friday ACHK

# PhD

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Do research in order to get a PhD is a waste of time.

[Instead, you should] Go to study a PhD because you want to know real and practical physicists

in order to do real research and real teachings.

— Me@<2008

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2010.04.30 Friday $copyright ACHK$