[most frequently used]
\alpha
\beta
\gamma
\phi
\pi
\frac {\empty }{\empty }[6_01.gif]
\root {}{\empty }[6_04.gif]
\root {\empty }{\empty }[6_05.gif]
\empty ^{\empty }[5_01.gif]
\log{\empty}{\empty}[10_07.gif]
\bracem{()}{\empty }[7_01.gif]
\bracem{||}{\empty }[7_03.gif]
\emptyset
