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1\environment math-fonts-helpers
2
3\startbuffer[accents]
4    $+\bar{u}\bar{f}\bar{\Omega}$
5    $\overbar{u}\overbar{f}\overbar{\Omega}$
6    $\overline{u}\overline{f}\overline{\Omega}$
7    \blank
8    $\dot{u}\dot{f}\dot{\Omega}$
9    $\hat{u}\hat{f}\hat{\Omega}$
10    $\tilde{u}\tilde{f}\tilde{\Omega}$
11    \blank
12    $\ddot{u}\ddot{f}\ddot{\Omega}$
13    $\widehat{u}\widehat{f}\widehat{\Omega}$
14    $\widetilde{u}\widetilde{f}\widetilde{\Omega}$
15\stopbuffer
16
17\starttext
18    \MathSamples [
19    ] [
20        accents
21    ]
22
23\stoptext
24