For some equations I need to visible their label, for example:
/begin{equation}
/label{eq:C3}
x+y=3
/end{equation}
I also used the package showlables.
In this case for each equation I received one number and one label
this happens for all equations from the first page to the last page like that:
$x+y=3 $ $ (1.1) (eq:C3)$
But I need the label $(eq:C3)$ just for the equations which are in my last chapter.
Do you have any suggestion?
If I understand you correctly you want to be able to turn on and off the printing of the labels by the showlabels package. The code below shows how you can define two macros \ShowLabels and \HideLabels that will do just that.
\documentclass{article}
\usepackage{showlabels}
\let\OriginalLabelFormat\showlabelsetlabel
\newcommand\ShowLabels{\let\showlabelsetlabel\OriginalLabelFormat}
\newcommand\HideLabels{\renewcommand\showlabelsetlabel[1]{}}
\begin{document}
\begin{equation}
a=a \label{a}
\end{equation}
\HideLabels % turns off showing of labels for the following equations
\begin{equation}
a=b \label{b}
\end{equation}
\ShowLabels % turn on labels again
\begin{equation}
a=c \label{c}
\end{equation}
\end{document}
\beginnot/beginshowlabelsis just for debugging so why does it matter if it applies to the whole document? – David Carlisle Feb 10 '19 at 23:08MWEwhere you used/instead of\\(for some reasons, I am not able to highlight my ). – Raaja_is_at_topanswers.xyz Feb 11 '19 at 10:37/not\everywhere? you have posted fragments like/begin{equation}which means no one can use your code. the second comment was asking why you only want to useshowlabelsfor part of the document, it is just a debugging package and should not affect the final document at all, so why does it matter if the debugging strings appear in all of the chapters? – David Carlisle Feb 11 '19 at 10:50eq:C3– David Carlisle Feb 11 '19 at 11:12