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% lewis.sty version 0.1 22-May-2006.
% Kent Horvath kenthorvath@gmail.com
% I contribute this software to the public domain. No rights reserved.
%
% Commands:
% ~~~~~~~~~
% \lewis {X}{.}{.}{.}{.}{.}{.}{.}{.}{.}{.} - Draws rudimentary lewis structures around
% - desired symbol X. Each {.} may be replaced
% - by the desired symbol to be placed at the
% - corresponding position. Note that the dots
% - are drawn clockwise starting in the lower
% - left hand side of the symbol X.
% Examples:
% ~~~~~~~~
% The Lewis Structure for XeF_2 is
% \lewis{\ce{F}}{.}{.}{.}{.}{}{}{.}{.}--\lewis{Xe}{}{.}{.}{.}{.}{}{.}{.}--\lewis{F}{}{}{.}{.}{.}{.}{.}{.}
%
% Caution:
% ~~~~~~~
% This package is provided without guarantees or support. I don't recommend
% that you use this package at all.
\ProvidesPackage{lewis}[2006/05/22 v0.1 Draw Lewis Structures]
\providecommand{\lewis}[9]{ \mbox{\ensuremath{ \begin{array}{c} _{#4 \,\, #5}\\ \raisebox{0.25em}{\ensuremath{^{#3}_{#2}}}\,\mbox{#1}\, \raisebox{0.25em}{\ensuremath{^{#6}_{#7}}}\\ \raisebox{0.3em}{\ensuremath{^{#9 \,\, #8}}}\\ \end{array}}}}
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