Recommended way to extend Schematron?

Hi Folks,

Suppose my Schematron assertions need to do some math calculations – cosine, sine, tangent, etc.

I am using XPath 2.0 in my Schematron assertions. But XPath 2.0 doesn’t support functions for cosine, sine, tangent, etc.

What is the recommended way to extend Schematron?

/Roger

Follow-Ups:
- Re: Recommended way to extend Schematron?
  - From: Jim Melton <jim.melton@o...>
- Re: Recommended way to extend Schematron?
  - From: George Cristian Bina <george@o...>
- Re: Recommended way to extend Schematron?
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- RE: Recommended way to extend Schematron?
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