About: http://webisa.webdatacommons.org/219237464

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	There is a maths stackexchange site you could have asked that in, and there wasn't any need for any programming help, if your problem was finding a formula.. especially if you -knew- there was a formula.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com