About: http://webisa.webdatacommons.org/143878540

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If q is a unit quaternion and p = [s, v], then the scalar (s) and the length of v, |v| are unchanged after conjugation by q.
http://www.w3.org/ns/prov#wasQuotedFrom	songho.ca