Description of rectangle

rectangle<int MM = 0, int NN = 0>		Programmers Guide
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Category:containers,selectors

Component type:type

Description

A MTL rectangular matrix is one in which elements could appear in any position in the matrix, i.e., there can be any element A(i,j) where 0 <= i <= M and 0 <= i <= M. Both dense and sparse matrices can fit into this category. The compatible storage types are dense, compressed, and array. If the matrix size is known at compile time, the matrix size can be built in to the shape (for dense external matrices). This allows some algorithms to optimize for small matrices. Here are a few examples of creating rectangular matrix types:

 typedef matrix < double,
                  rectangle<>, 
                  dense<>,
                  column_major >::type FortranMatrix;
  
 typedef matrix < double,
                  rectangle<>, 
                  compressed<>,
                  row_major >::type CSR;
  
 typedef matrix < double,
                  rectangle<4,4>, 
                  dense<>,
                  row_major >::type Quaternion;
  
 typedef matrix < double,
                  rectangle<>, 
                  array< compressed<> >,
                  row_major >::type SparseArrayMat;

Example

Definition

matrix.h

Template Parameters

Parameter	Description	Default
`MM`	The number of rows of the matrix, if the matrix has static size (known at compile time)	`not static`
`NN`	The number of columns of the matrix, if the matrix has static size (known at compile time)	`not static`

Model of

Members

Member	Where defined	Description
`enum { M = MM, N = NN, id = RECT, uplo }`

New members

Notes

See also