Adding, Editing, and Deleting LaTeX Equations (Online)

PERRLA Online lets you insert LaTeX-based equations directly into your paper, with a live preview as you type.

Note: Equations are only available in PERRLA Online papers created after July 28, 2026.

Adding an Equation

1. Place your cursor where you want the equation to appear. 
2. Click Insert, then click Equation. 
3. Type your equation in LaTeX in the text box that appears in the side panel.
   A live preview of your equation appears above the Insert Equation button as you type.
4. Choose Inline or Display for how you want the equation placed.
   Inline keeps the equation within a sentence. Display places it on its own line.
5. Click Insert Equation. 

APA 7

Choosing Display shows this note:

"PERRLA numbers displayed equations automatically, per APA style. Refer to this equation in your text by its full label — e.g. 'Equation 1', never 'Eq. 1'."

MLA 9 and Turabian 9

Choosing Display shows a Number this equation checkbox, along with this note:

"Number the equations you refer to in your text, and cite them as 'equation (1)'. PERRLA keeps the numbering consecutive for you."

Editing and Deleting an Equation

Double-click an equation in your paper to edit it.

You can also right-click an equation and choose Edit Equation or Delete Equation.