About: http://webisa.webdatacommons.org/45438099

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 ?n is a unit normal to the surface in the direction of increasing ?(x,y,z), then the gradient is sometimes written ??? ??
http://www.w3.org/ns/prov#wasQuotedFrom	studyblue.com