using the "Equation.3" office component

Hello,

I would like to use the "Equation.3" Miscrosoft Office component on a form.
I want to display equations on this form, depending on the user's input.

I had no difficulty to insert such an object on my form, or even to "createObject" one.
However, I could not go further.
I could not discover any of its properties and methods. (only container properties)
I could not find a documentation.

Would you know how to use this component?

Thanks