I would like to learn to avoid this annoying warnings:
Overfull \hbox (11.18448pt too wide) in paragraph at lines 6--7
The easiest document possible:
\documentclass[a4paper, 10pt]{article}
\begin{document}
That is to say, an inertial reference $P$ is like an affine reference $(p_0;v_0,v_1,v_2,v_3)$ such that $\{v_0,v_1,v_2,v_3\}$ is a positively oriented basis of $E$, vector $e_0$ is oriented to the future and...
\end{document}
gives me
If I add \break following to "reference", it still gives me the warning. So, how can I fix this warnings? (Indeed I have my documents full of them!, I just want to get rid of them)



draftto thedocumentclass, and you'll see black boxes where there areoverfullbox errors. Makes it easier to ''debug''. – Troy Apr 17 '17 at 12:44