在“考试”类中制作剩余行宽的 \fbox

Question

我正在课堂上写数学试卷exam，我想制作一些方框，让学生在里面写下答案。我试过此解决方案，但该框超出了右页边距 6.79999pts。这里出了什么问题？

梅威瑟：

\documentclass[12pt, a4paper]{exam}
\RequirePackage{amssymb, amsfonts, amsmath, latexsym, verbatim, xspace, setspace}
\usepackage[margin=1in,showframe]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{fouriernc}
\usepackage{calc}

\usepackage{tikz,tikzpagenodes}
\usetikzlibrary{calc}

\newlength{\whatsleft}
\newcommand{\measureremainder}[1]{%
\begin{tikzpicture}[overlay,remember picture]
    % Measure distance to right text border
    \path let \p0 = (0,0), \p1 = (current page text area.east) in
        [/utils/exec={\pgfmathsetlength#1{\x1-\x0}\global#1=#1}];
\end{tikzpicture}%
}

\onehalfspacing

\begin{document}
\begin{questions}
\addpoints
\question[8] \emph{Regn ut:}
\begin{parts}
    \part[2] $6-(-4) = $ \measureremainder{\whatsleft}\fbox{\begin{minipage}{\whatsleft}\vspace{2em}\hfill\end{minipage}}
\end{parts}

\end{questions}
\end{document}

导致

Answer 1

您需要考虑盒子填充

\begin{minipage}{\whatsleft-2\fboxsep-2\fboxrule}

但实际上你并不需要 tikz，你只需使用经典的 TeX 领导者即可。

\documentclass[12pt, a4paper]{exam}
\RequirePackage{amssymb, amsfonts, amsmath, latexsym, verbatim, xspace, setspace}
\usepackage[margin=1in,showframe]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{fouriernc}
\usepackage{calc}

\usepackage{tikz,tikzpagenodes}
\usetikzlibrary{calc}

\newlength{\whatsleft}
\newcommand{\measureremainder}[1]{%
\begin{tikzpicture}[overlay,remember picture]
    % Measure distance to right text border
    \path let \p0 = (0,0), \p1 = (current page text area.east) in
        [/utils/exec={\pgfmathsetlength#1{\x1-\x0}\global#1=#1}];
\end{tikzpicture}%
}

\onehalfspacing

\begin{document}
\begin{questions}
\addpoints
\question[8] \emph{Regn ut:}
\begin{parts}
    \part[2] $6-(-4) = $ \measureremainder{\whatsleft}\fbox{\begin{minipage}{\whatsleft-2\fboxsep-2\fboxrule}\vspace{2em}\hfill\end{minipage}}
\end{parts}

\question[8] \emph{Regn ut:}
\begin{parts}
    \part[2] $6-(-4) = $ \vrule\leaders\vbox{\offinterlineskip\hrule width.1pt\vskip\normalbaselineskip\hrule\kern-\dp\strutbox\hrule width0pt depth\dp\strutbox}\hfill\vrule\mbox{}\\dd
\end{parts}

\end{questions}
\end{document}