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Simple inline $E=mc^2$
复杂一点的独立公式:
$$\frac{\partial u}{\partial t}
= h^2 \left( \frac{\partial^2 u}{\partial x^2} +
\frac{\partial^2 u}{\partial y^2} +
\frac{\partial^2 u}{\partial z^2}\right)$$

$$\cos 2\theta = \cos^2 \theta - \sin^2 \theta = 2 \cos^2 \theta - 1$$

最后来个牛逼的吧，薛定谔方程，大学物理考试貌似还复习过这个公式，虽然现在已经记不清是什么意思来着了：
$$i\hbar\frac{\partial \psi}{\partial t}
= \frac{-\hbar^2}{2m} \left(
\frac{\partial^2}{\partial x^2}+ \frac{\partial^2}{\partial y^2}+ \frac{\partial^2}{\partial z^2}
\right) \psi + V \psi.$$

插个图片试试:

some julia code

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x = linspace(0, 2pi, 100)
y = sin(x)
z = cos(x)
plot(x, y, x, z)

• hanjihui
• shiyuefeng

  1 2	x = linspace(0, 2pi, 100) y = sin(x)

shitou[^shitou]

高效绘制 流程图

[^shitou] hahfadshfkdsh