<http://webisa.webdatacommons.org/25159486>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/25159486>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackexchange.com> .
<http://webisa.webdatacommons.org/prov/516270922>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/25159486> .
<http://webisa.webdatacommons.org/25159486>	<http://www.w3.org/ns/prov#value>	"where W is a predetermined 3x3 matrix and R is the 3x3 matrix that I am trying to optimize, with the constraint that it must be a rotation matrix." .