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\sqrt
\*
\frac
Synopsis:
\frac{numerator}{denominator}
Produces the fraction. Used as: \begin{displaymath} \frac{1}{\sqrt{2\pi\sigma}} \end{displaymath}. In inline math mode it comes out small; see the discussion of \displaystyle (see Math formulas).
\begin{displaymath} \frac{1}{\sqrt{2\pi\sigma}} \end{displaymath}
\displaystyle