Math

Hi,

When including equations in an article, what is the correct docbook
markup to use if I'd like my equations numbered?

It would look the same as the wolfram pages,
http://scienceworld.wolfram.com/physics/MomentofInertiaRing.html

I've been using condition="n" on the informalequation element, is
there a better way to do this in docbook 4, or 5?

Kind regards,
Aidan