Underfull \hbox (badness 10000) in paragraph at lines 106--107

Question

Recently, LaTeX always shows

"Underfull \hbox (badness 10000) in paragraph at lines 106--107

Trial:

   \documentclass{ctexart}
   \usepackage{color}
   \usepackage{amsmath}
   \usepackage{amssymb}
   \usepackage{graphicx}
   \usepackage{epstopdf}
   \hfuzz=\maxdimen
   \tolerance=10000
   \hbadness=10000
   \begin{document}

$(A \pm  B)^{-1} \neq A^{-1} \pm B^{-1}$,$(A \pm  B)^* \neq A^* \pm B^*$~\
$|(A^*)^*|=|A|^{n^2-2 n+1}$~\
\end {document}

My question :How to revise it?

And I found the code that cotains the "~\\" and blank line always shows the warning imformation "Underfull \hbox (badness 10000) in paragraph at lines"

enter image description here

Welcome to TeX.SX. You will need to provide a little bit more details about your document so that we can better assist you. For example, start by providing a minimal working example that illustrates the problem hereby spoken of. — azetina, Dec 17 '13 at 15:38
give us a clue: what does your source look like on lines 106-107 ? — David Carlisle, Dec 17 '13 at 15:42
@David Carlisle,Dear David Carlisle,I found the code that cotains the "~\\" and blank line always shows the warning imformation "Underfull \hbox (badness 10000) in paragraph at lines" — abc, Dec 18 '13 at 01:55
@tangshutao yes well, I could have guessed that it was \\ at the end of a paragraph. Never do that. — David Carlisle, Dec 18 '13 at 09:17
Simply remove the ~\\ It is always wrong to end a paragraph with \\ (and always wrong to have ~ at the end of a line) — David Carlisle, Dec 18 '13 at 09:19

score 4 · Answer 1 · edited Jul 13 '17 at 15:03

You really don't want to set \hfuzz etc that way or tex will produce truly unreadable documents with no warning.

  \documentclass{ctexart}
   \usepackage{color}
   \usepackage{amsmath}
   \usepackage{amssymb}
   \usepackage{graphicx}
   \usepackage{epstopdf}
%   \hfuzz=\maxdimen
%   \tolerance=10000
%   \hbadness=10000
   \begin{document}

\begin{gather*}
(A \pm  B)^{-1} \neq A^{-1} \pm B^{-1} \quad (A \pm  B)^* \neq A^* \pm B^*\\
|(A^*)^*|=|A|^{n^2-2 n+1}
\end{gather*}

\end {document}

Underfull \hbox (badness 10000) in paragraph at lines 106--107

1 Answers1