The '''kernel''' in [[geometry]] is the set of all points ''a'' such that for all points ''b'' inside a polygon ''P'', the segment ''ab'' lies entirely within ''P'' <ref>http://www.patentstorm.us/patents/7305116-claims.html</ref>.
+
The '''kernel''' in [[geometry]] is the set of all points ''a'' such that for all points ''b'' inside a polygon ''P'', the segment ''ab'' lies entirely within ''P''.<ref>http://www.patentstorm.us/patents/7305116-claims.html</ref>
−
In [[abstract algebra]], the '''kernel''' of a [[function]] between two [[group_(mathematics)|group]]s is the set of all members of the first which map to the identity of the second. Similarly, the '''kernel''' of a mapping in [[linear algebra]] from one [[vector space]] to another is the set of vectors mapped to the zero [[vector]].
+
In [[abstract algebra]], the '''kernel''' of a [[function]] between two [[group (mathematics)|group]]s is the set of all members of the first which map to the identity of the second. Similarly, the '''kernel''' of a mapping in [[linear algebra]] from one [[vector space]] to another is the set of vectors mapped to the zero [[vector]].