xpointer(string-range(id("para1"),"representation",1,9))

xpointer(id("para4"))

xmlns(def=http://cnx.rice.edu/cnxml) xpointer(/child::def:document/child::def:metadata)

xmlns(m=http://www.w3.org/1998/Math/MathML) xpointer(id("para3")/m:math[2])

xmlns(def=http://cnx.rice.edu/cnxml) xmlns(bib=http://bibtexml.sf.net/) xmlns(m=http://www.w3.org/1998/Math/MathML) xmlns(md=http://cnx.rice.edu/mdml/0.4) xpointer(string-range(id("para1"),"Geometric",1,6))

xmlns(def=http://cnx.rice.edu/cnxml) xmlns(bib=http://bibtexml.sf.net/) xmlns(m=http://www.w3.org/1998/Math/MathML) xmlns(md=http://cnx.rice.edu/mdml/0.4) xpointer(/def:document//def:para)

xmlns(m=http://www.w3.org/1998/Math/MathML) xpointer(id("para7")//m:math)

xmlns(m=http://www.w3.org/1998/Math/MathML) xmlns(cnx=http://cnx.rice.edu/cnxml) xpointer(id('para7')/cnx:equation)

xmlns(m=http://www.w3.org/1998/Math/MathML) xmlns(cnx=http://cnx.rice.edu/cnxml)xpointer(/descendant::m:math[position()=2]/ancestor::*[position()=1])

xmlns(m=http://www.w3.org/1998/Math/MathML) xpointer(start-point(string-range(id('para2'),'Orthonormal')))

xmlns(m=http://www.w3.org/1998/Math/MathML) xpointer(end-point(string-range(id('para2'),'Orthonormal')))

xpointer(end-point(string-range(id("para2"),"essential"))))