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A good deal of dirty tricks! \documentclass[twocolumn]{article} \usepackage[linesnumbered]{algorithm2e} \usepackage{multicol} \usepackage{graphicx} \usepackage{lipsum} \begin{document} \lipsum[1-3] \begin{figure*}% for getting a float \begingroup % trick algorithm2e into thinking we're in one column mode \csname @twocolumnfalse\endcsname \noindent ...


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If your document looks like \documentclass{article} \begin{document} \usepackage{subfigure} \end{document} then you get the error ! LaTeX Error: Can be used only in preamble. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.5 \usepackage ...



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