# 试试看

By [Ge Jungle](https://paragraph.com/@ge-jungle) · 2022-05-18

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先看看怎么写东西

    $U_{i}(a_i,a_{-i})=\alpha a_i+\frac{1}{2}a_i^2+\gamma \sum_{j\in N(i)}{g_{ij}a_ia_j}$
    

![120th anniversary of the whole Nanjing universities](https://storage.googleapis.com/papyrus_images/83bf210b38e0b50662bc90c0eec21bb276967953db3c3fa8ec5410cfeb02da2a.jpg)

120th anniversary of the whole Nanjing universities

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*Originally published on [Ge Jungle](https://paragraph.com/@ge-jungle/uJFlhkYTz2pRnfyiblG3)*