Eigen  3.4.90 (git rev 9589cc4e7fd8e4538bedef80dd36c7738977a8be)
 
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Eigen::Diagonal< MatrixType, Index > Class Template Reference

#include <Eigen/src/Core/Diagonal.h>

Detailed Description

template<typename MatrixType, int Index = 0>
class Eigen::Diagonal< MatrixType, Index >

Expression of a diagonal/subdiagonal/superdiagonal in a matrix.

Template Parameters
MatrixTypethe type of the object in which we are taking a sub/main/super diagonal
DiagIndexthe index of the sub/super diagonal. The default is 0 and it means the main diagonal. A positive value means a superdiagonal, a negative value means a subdiagonal. You can also use DynamicIndex so the index can be set at runtime.

The matrix is not required to be square.

This class represents an expression of the main diagonal, or any sub/super diagonal of a square matrix. It is the return type of MatrixBase::diagonal() and MatrixBase::diagonal(Index) and most of the time this is the only way it is used.

See also
MatrixBase::diagonal(), MatrixBase::diagonal(Index)

The documentation for this class was generated from the following files: