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One of the most useful features of LaTeX is its ability to handle cross-references. To use this, we first define a label at the section (or equation, table, etc.) we want to reference, using the \label{} command, e.g. The argument to the \label command is just a text string that you'll use to reference that part.

LaTeX handles that automatically. However, to refer to the changed numbers you need to include a label in the equation environment. For example, ?\begin{equation} x = y + z \label(myeq} \end{equation}?. Then when you want to refer to that equation you cite the label.

2 Answers Put parentheses around equation numbers; don't use the word "Equation" unless after a period. "Figure/Table/Algorithm X", with no parentheses. Parentheses are reserved for equations, and square brackets for citations.

If you want LaTeX to automatically number or re-number equations in a document you should insert the text ?\label{EqLabel}? after the equation and inside the equation environment, where ?EqLabel? is any label you choose, possibly to help you to remember the equation, e.g.

Mathematical equation Author. Year of publication (in round brackets). Title of article (in single quotation marks). Title of journal (in italics ? capitalise first letter of each word in title, except for linking words such as and, of, the, for). Volume, issue, page numbers. Available at: URL (or doi if available).

This equation is automatically numbered, and by including a \label command, we can refer to this number from anywhere within the rest of the document using the \ref command.

It's important to add \label after a numbered element e.g. \section , \subsection , \caption etc, otherwise the label won't "latch on" to the correct number or counter. This prints the number assigned to the object labeled by marker. This prints the number of the page where the object labeled by marker appears.