Latex的各种帽子

转载

1. (hat{A}): hat{A}

2. (widehat{A}): widehat{A}

3. ( ilde{A}): ilde{A}

4. (widetilde{A}): widetilde{A}

5. (overline{A}): overline{A}

6. (underline{A}): underline{A}

7. (overbrace{A}): overbrace{A}

8. (underbrace{A}): underbrace{A}

9. (overset{a}{b}): overset{a}{b}

10. (underset{a}{b}): underset{a}{b}

11. (overleftarrow{A}): overleftarrow{A}

12. (overrightarrow{A}): overrightarrow{A}