hello

测试博客专用

pip install virtualenv

#include <stdio.h>
int main()
{
    int a, b;
    return 0;
}

mathjax test

x = $a= b+c$ 这是一个inline公式

$$\frac{\partial u}{\partial t} = h^2 \left( \frac{\partial^2 u}{\partial x^2} + \frac{\partial^2 u}{\partial y^2} + \frac{\partial^2 u}{\partial z^2}\right)$$