Thanks, Holger, That’s good to know.
Generally, when I’m looking for functions to use, I refer to the “TopBraid SPARQL Functions reference” section in TBC Help. Updating that with either the new afn: functions, or a link to http://jena.apache.org/documentation/query/library-function.html in the help file would be a good way for users to know what is available. - Steve Steven R. Ray, Ph.D. Distinguished Research Fellow Carnegie Mellon University NASA Research Park Building 23 (MS 23-11) P.O. Box 1 Moffett Field, CA 94305-0001 Email: steve....@sv.cmu.edu Phone: (650) 587-3780 Cell: (202) 316-6481 Skype: steverayconsulting cid:A9ED74CE-68DA-4276-847C-3C08B21B97C0@wv.cc.cmu.edu From: topbraid-users@googlegroups.com [mailto:topbraid-users@googlegroups.com] On Behalf Of Holger Knublauch Sent: Tuesday, June 07, 2016 3:52 PM To: topbraid-users@googlegroups.com Subject: Re: [topbraid-users] Support for square root Hi Steve, Jena already includes a number of math functions including afn:sqrt(num), see http://jena.apache.org/documentation/query/library-function.html These functions are not however listed in the afn namespace as instances of spin:Function and therefore do not show up in auto-complete etc. Andy also updated me that Jena 3 (with TopBraid 5.2) will include the math functions from https://www.w3.org/TR/xpath-functions-31/ Thanks Holger On 7/06/2016 4:40, Steve Ray (CMU) wrote: Seeing the release of TopBraid 5.1.4 reminded me that I would like to suggest the addition of the square root function to your standard library of math functions. I know others have bumped into this omission. In the meantime, I went ahead and defined it with the following code: rules:sqrt rdf:type spin:Function ; spin:constraint [ rdf:type spl:Argument ; spl:predicate sp:arg1 ; ] ; spin:returnType xsd:float ; spinx:javaScriptCode "return Math.sqrt (arg1)"^^xsd:string ; rdfs:comment "Compute the square root of a number."^^xsd:string ; rdfs:subClassOf spin:Functions ; …which requires importing http://spinrdf.org/spinx (from /TopBraid/SPIN/spinx.ttl) I know it’s easy for users to just do this, but many people may not want to figure out how to bring in javascript snippets and locate the Math library. Of course, you would use a different prefix than “rules” which I did. - Steve Steven R. Ray, Ph.D. Distinguished Research Fellow Carnegie Mellon University NASA Research Park Building 23 (MS 23-11) P.O. Box 1 Moffett Field, CA 94305-0001 Email: steve....@sv.cmu.edu Phone: (650) 587-3780 Cell: (202) 316-6481 Skype: steverayconsulting cid:A9ED74CE-68DA-4276-847C-3C08B21B97C0@wv.cc.cmu.edu -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include the TopBraid Suite family of products and its base technologies such as SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbraid-users@googlegroups.com --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include the TopBraid Suite family of products and its base technologies such as SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbraid-users@googlegroups.com --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Group "TopBraid Suite Users", the topics of which include the TopBraid Suite family of products and its base technologies such as SPARQLMotion, SPARQL Web Pages and SPIN. To post to this group, send email to topbraid-users@googlegroups.com --- You received this message because you are subscribed to the Google Groups "TopBraid Suite Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to topbraid-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
