Mathematics

Equations are entered as usual. SIAM journals put equation numbers on the left. It appears to be up to the author whether equations are numbered within a section (e.g., (4.2)) or within the paper (e.g., (2)). The siam style uses the latter, as this example from the SIAM Journal on Numerical Analysis [#!bube!#] shows:

rk = $\displaystyle \int_{{-\Delta}}^{{\Delta}}$r(2kΔ + τ) dτ        (0≤k≤n) (1)

There are four ``theorem-like'' environments predefined: theorem, lemma, corollary, and proposition. Again, SIAM does not appear to prescribe the exact numbering scheme to be used. The siam style numbers them all in the same index space, and not within each section. There is also a \proof environment. For example, here is Theorem 1 of the example paper [#!bube!#]:
\begin{theorem} Suppose the ramp reflectance is sampled. Then \begin{equation} \... ...lem can be solved, yielding a positive discrete impedance profile. \end{theorem}

\begin{proof} % latex2html id marker 55Fix $\Delta$, and fix $j$\ and $x$\ wit... ...\le X$.\\ \dots so since $R_j$\ is symmetric, (\ref{theq}) follows. \end{proof}