No.5 Markdown 文章测试

MarkDown MathJax双解析测试

MarkDown

$ \sigma^2=E(u_t2)=\alpha_t+\alpha_1 u_t $

$ \sigma^2=E(u_t2)=\alpha_{t-1}+\alpha_1 u_t $

$ \sigma^2=E(u_t2)=\alpha_{t-1}+\alpha_1 u_{t-1} $

Inline equation: \(a^2 + b^2 = c^2\)

$\alpha_{t-1} u_{t+k} = \beta $