If you need to insert cross-references to numbered elements in the document, ( like equations, sections and figures) there are commands to automate it in LaTeX .

Your question is more a general question about labeling and referencing equations. I think one great introduction is the mathmode of Herbert.

To reference a LaTeX table or equation in LaTeX you need to make sure that you insert a label in your table or equation.

In LaTeX, you can easily reference almost anything that can be numbered, and have . It is normally better to use labels, but sometimes hard-coded equation.

Instead, employ precise cross-references such as "equation (4)", "Section 5", and The first time this is LaTeX'ed the table will not appear because the.