13 Captioning and referencing equations
This section introduces how to add captions to equations, and reference them in text.
13.1 Overview
- Teaching: 5 minutes
- Exercises: 5 minutes
13.2 Questions
- How do I caption an equation?
- How do I reference an equation?
13.2.1 Numbering equations
You can make reference an equation by adding a label starting with #eq- after the equation $$. For example:
$$
Y \sim X\beta_0 + X\beta_1 + \epsilon
$$ {#eq-linear}Gives
\[ Y \sim X\beta_0 + X\beta_1 + \epsilon \tag{13.1}\]
You can then refer to the equation in text using @eq-linear:
Our model is given in Equation 13.1.
NoteYour Turn
- Using “03-qmd-lm-tables-inline-eqn.qmd”
- Give the equation in your document a label starting with
#eq- - Refer to that equation in text with
@eq- - Render the document, and check that the equation is numbered and that your reference links to it
- Give the equation in your document a label starting with
13.3 Other equation-adjacent referencing
You can also use and reference theorems, lemmas, conjectures, and many more - to see these, see the Quarto documentation: theorems and proofs documentation.