mo271/latex_test.md

## latex_test.md

      
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              latex_test.md
            
          
    The Basel Problem:
$$\sum_{n=1}^\infty \frac{1}{n^2} = \frac{\pi^2}{6}.$$
Some commutative diagram:
$$\require{AMScd}
\begin{CD}
K(X) @>{ch}>> H(X;\mathbb Q);\\
@VVV @VVV \\
K(Y) @>{ch}>> H(Y;\mathbb Q);
\end{CD}$$