The Mathcad dynamic document is checked in to Windchill.
How do I make a relation from a top level document to the Mathcad object.
How do I publish a pdf of the top level document that includes the Mathcad document.
Thats more a Windchill than a Mathcad question, I guess.
Maybe you get a better response if you ask that question in the Windchill section here: http://communities.ptc.com/community/post!input.jspa?containerType=14&container=2034