I want to create this table:
I started with this, but it doesn't work:
\documentclass[11pt,a4paper]{article}
\usepackage[latin1]{inputenc}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{graphicx}
\usepackage{siunitx}
\usepackage{booktabs}
\begin{document}
\begin{center}
\begin{tabular}{c|c}
hello & hello \\
\toprule
hello hello hello hello hello hello hello hello hello hello space infinity & hello hello hello hello \\
hello hello hello hello hello & hello hello hello hello \\
\end{tabular}
\end{center}
\end{document}}
How can I fix this?






booktabshorizontal rules. So you need to either replace\toprulewith\hlineor get rid of the vertical line. However\topruleis not the correct choice of rule, it should be\midrulebut I expect what you're really going for is a thicker line, which demands a different solution https://tex.stackexchange.com/questions/256731/changing-width-of-table-lines – Au101 Aug 26 '18 at 16:46p{2cm}(where 2cm is a fairly arbitrary length, you will have to select the width that you would like to use) instead of accolumn. Withcthe column will be as wide as its contents, and if that means too wide for the page then unfortunately the table will run off the page, the line won't break, because you haven't told it when to break. Withp{2cm}you tell it you want a 2cm wide cell and then the line will break to respect that – Au101 Aug 26 '18 at 16:48\specialrule{\heavyrulewidth}{0pt}{0pt}: it will have the same thickness as\toprulebut no vertical padding. An alternative: loadboldline, from theshipunovbundle, which defines horizontal and vertical lines with custom thickness. – Bernard Aug 26 '18 at 16:53