Difference between revisions of "Cartesian product"
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| − | The '''cartesian product''' of 2 sets ''A'' and ''B'' is the set (usually denoted by ''A × B'') consists of all ordered pairs ''(a, b)'' where <math>a \in A</math> and <math>b \in B</math>. | + | The '''cartesian product''' of 2 sets ''A'' and ''B'' is the set (usually denoted by ''A × B'') consists of all ordered pairs ''(a, b)'' where <math>a \in A</math> and <math>b \in B</math>. The Cartesian product is named after [[René Descartes]] who invented this concept. |
[[category:set theory]] | [[category:set theory]] | ||
Revision as of 04:29, April 12, 2007
The cartesian product of 2 sets A and B is the set (usually denoted by A × B) consists of all ordered pairs (a, b) where <math>a \in A</math> and <math>b \in B</math>. The Cartesian product is named after René Descartes who invented this concept.