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head 1

head 2

为什么之前的文件全是乱的啊啊啊

引用

代码

requires_authorization
def somefunc(param1='', param2=0):
	'''A docstring'''
	if param1 > param2:
		print 'Greater'
	return (param2 - param1 + 1) or None

1	sudo apt-get install vim

latex

$E = mc^2$

$$\Delta_A(\lambda)=\det(\lambda I-A)$$

\begin{aligned}
\dot{x} & = \sigma(y-x) \\
\dot{y} & = -\beta z + xy
\end{aligned}