We refer to \eqrefeq:square but not to \eqrefeq:root.
% This equation will be numbered because it is referenced below \beginequation E = mc^2 \labeleq:einstein \endequation
As Einstein said, see \eqrefeq:einstein. autonum.info
autonum is often preferred over mathtools ’ showonlyrefs because autonum works with more environments and handles \label placement more robustly. \documentclassarticle \usepackageamsmath \usepackage[colorlinks]hyperref \usepackagecleveref \usepackageautonum \begindocument
% This equation will NOT be numbered (no reference) \beginequation a^2 + b^2 = c^2 \endequation We refer to \eqrefeq:square but not to \eqrefeq:root
\beginequation g(x) = \sqrtx \labeleq:root \endequation
1. Overview The autonum package (found at autonum.info ) provides a sophisticated solution for managing equation numbering in LaTeX documents. Its core purpose is to automatically control which equations receive numbers based on whether they are referenced elsewhere in the text. \beginalign x &= y + z \labeleq:first \
\beginalign x &= y + z \labeleq:first \ a &= b - c \labeleq:second \endalign