當使用 subfig 套件時，\subfloat標題會進入對面的列。我附上了一個工作範例。
\documentclass[10pt, twocolumn]{revtex4} % Font size (10,11 or 12pt) and column number (one or two).
\usepackage[a4paper, left=1.85cm, right=1.85cm,
top=1.85cm, bottom=1.85cm]{geometry} % Defines paper size and margin length
\usepackage[font=small,
labelfont=bf]{caption} % Defines caption font size as 9pt and caption title bolded
\usepackage[font=small]{subfig}
\usepackage{pgfplots}
\usepackage{tikz}
\usepackage[font=small]{subfig}
\usepgfplotslibrary{external}
\tikzexternalize
\begin{document}
\begin{figure}
\centering
\subfloat[Long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption long caption.]{
\label{fig:sub:derivs}
\input{derivsboth.pgf}
}
\centering
\subfloat[Caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption caption ]{
\label{fig:sub:initialderiv}
\input{initialderiv.pgf}
}
\caption{Main caption main caption main caption main caption main caption main caption main caption main caption main caption main caption main caption main caption main caption main caption }
\label{fig:full:derivs}
\end{figure}
我的理解是，中的方括號subfloat可以用作標題。這是有意的/我應該做一些不同的事情嗎？先致謝！
