Is it possible to re-insert an equation in LaTeX via referencing the original equation by label? I already know, it is possible to:
- reuse the original equation numbering via
\tag{}
as described here - re-insert an equation by "boxing" the original one as said here
But isn't it possible to reuse the whole equation (i.e. its text and numbering) just using the label? Wouldn't it be natural to do so, instead of artificially creating additional labels by "boxing"? I'm feeling there must be a better way, or is my intuition wrong?