Autonum.info File

We only refer to \eqrefeq:first. Hence only the first line gets a number.

\beginalign x &= y + z \labeleq:first \ a &= b - c \labeleq:second \endalign

% This equation will NOT be numbered (no reference) \beginequation a^2 + b^2 = c^2 \endequation autonum.info

\beginequation f(x) = x^2 \labeleq:square \endequation

% This equation will be numbered because it is referenced below \beginequation E = mc^2 \labeleq:einstein \endequation We only refer to \eqrefeq:first

\enddocument

\beginequation g(x) = \sqrtx \labeleq:root \endequation On the , autonum reads the

On first compile, both equations may appear numbered. On the , autonum reads the .aux file, sees that eq:einstein is referenced, and keeps its number. The Pythagorean equation remains unreferenced, so its number disappears. 3.3 With align and cleveref \documentclassarticle \usepackageamsmath, cleveref \usepackageautonum \begindocument

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

We refer to \eqrefeq:square but not to \eqrefeq:root.

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.