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| Category:containers | Component type:concept |  | 
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| Description | 
| A row-oriented, or row-major Matrix. The iterators for this
 Matrix type traverse along the rows of the Matrix, and the
 operator[](n) returns a row of the Matrix.
 Additionally, there is a Row typedef which refers to the OneD
 type of the Matrix. | 
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| Refinement of | 
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| Associated types | 
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| Concept | Type name | Description | 
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 | Vector | X::Row | Row type, same as Matrix::OneD |  | 
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| Notations | 
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| Definitions | 
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| Expression semantics | 
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| Description | Expression | Semantics |  | 
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| Function specification | 
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| Invariants | 
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| See also | 
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