About: http://webisa.webdatacommons.org/138084292

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	Then, at block 42 the derivatives of the known polynomials are fit to the derivatives (i.e., gradient) determined at block 38 using, e.g., a least squares fit or other fitting algorithm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com