你好呀~

λ 演算(Lambda calculus)

If you have the name of the spirit, you get control over it.

– Harold Abelson1

秘书问题(Secretary problem)

Life can only be understood going backwards, but it must be lived going forwards.

– Søren Aabye Kierkegaard (1813-1855)

投入产出法(Input-output method)

In God we trust, all others bring data.

– William Edwards Deming (1900-1993)

不知不觉 2020 年已经过去 1/12 了,1 月的文章也自然咕咕咕了(理直气壮.jpg)。

没有魔法与奇迹的 2019

一年又悄悄过去了!