表格中顶部规则和垂直线之间的间隙

Question

在此 MWE 中

\documentclass[]{article}
\usepackage{amsmath}
\usepackage{booktabs}%added 8/16/2019
\setlength\heavyrulewidth{0.5ex}

\begin{document}            
\small
\begin{tabular}[c]{|p{1.5in}|p{4in}|}
\toprule
Problem&1\\\hline 
ODE            &${\frac {\rm d}{{\rm d}x}}y \left( x \right) =1+2\,x$\\\hline 
ODE degree     &1\\\hline 
Number of solutions &1\\\hline 
CAS classification &quadrature\\\hline 
Program classification&{\footnotesize [separable]}\\\hline 
Solved? &yes\\\hline
Verified? &yes\\ 
\bottomrule
\end{tabular}
\normalsize

\end{document}

我需要弥补输出中显示的差距：

如何修改上述 MWE 来弥补这些差距？

使用 TL 2019

Answer 1

\Xhline以下是使用该包的另一种方法makecell：

\documentclass[]{article}
\usepackage{amsmath}

\usepackage{makecell}


\begin{document}

\small
\begin{tabular}[c]{|p{1.5in}|p{4in}|}
\Xhline{0.5ex}
Problem&1\\\hline 
ODE            &${\frac {\rm d}{{\rm d}x}}y \left( x \right) =1+2\,x$\\\hline 
ODE degree     &1\\\hline 
Number of solutions &1\\\hline 
CAS classification &quadrature\\\hline 
Program classification&{\footnotesize [separable]}\\\hline 
Solved? &yes\\\hline
Verified? &yes\\ 
\Xhline{0.5ex}
\end{tabular}
\normalsize

\end{document}

---

使用该包并遵循手册booktabs中的指导的示例booktabs

只要您始终牢记两个简单的准则，就不会犯大错：1. 永远不要使用垂直规则。

看起来可能像下面这样：

\documentclass[]{article}
\usepackage{amsmath}
\usepackage{booktabs}

\begin{document}

\begin{tabular}[c]{ll}
\midrule
Problem & 1 \\ \addlinespace
ODE            &${\frac {\rm d}{{\rm d}x}}y \left( x \right) =1+2\,x$\\ \addlinespace
ODE degree     &1\\  \addlinespace
Number of solutions &1\\ \addlinespace
CAS classification &quadrature\\ \addlinespace
Program classification&{\footnotesize [separable]}\\  \addlinespace
Solved? &yes\\ \addlinespace
Verified? &yes\\ 
\bottomrule
\end{tabular}

\end{document}