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). 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
Insert
              Equation