About: http://webisa.webdatacommons.org/300902747

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	Since $\det(...)<0$ at $[-\frac{1}4,\frac{-1}{16}]$, then this point is a saddle point for the function.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com