Adding MathML Equations in DITA Topics
You can add MathML equations in a DITA document open in the
        Author visual editing mode using one of the following methods:
    - Embed MathML directly into a DITA topic. You can use from the contextual menu or the main menu action to insert a MathML equation. Clicking on the equation will open a MathML Editor where you can edit the code.
 - Reference an external MathML file as an image, using the
              
Insert
            Image action that is available on the DITA toolbar (or from the  menu). 
Publishing Notes: 
      
  - MathML equations contained in DITA topics can be published out-of-the-box in PDF using the DITA PDF transformation scenario.
 - The DITA Map PDF - based on HTML5 & CSS transformation scenario support MathML equations.
 - For details about HTML output, see How to View MathML Equations in HTML Output.
 - For other publishing formats, you might need to employ additional customizations for handling MathML content.
 
        
Insert
              Equation