Global matrix typedefs

Detailed Description

Eigen defines several typedef shortcuts for most common matrix and vector types.

The general patterns are the following:

MatrixSizeType where Size can be 2,3,4 for fixed size square matrices or X for dynamic size, and where Type can be i for integer, f for float, d for double, cf for complex float, cd for complex double.

For example, Matrix3d is a fixed-size 3x3 matrix type of doubles, and MatrixXf is a dynamic-size matrix of floats.

There are also VectorSizeType and RowVectorSizeType which are self-explanatory. For example, Vector4cf is a fixed-size vector of 4 complex floats.

With [c++11], template alias are also defined for common sizes. They follow the same pattern as above except that the scalar type suffix is replaced by a template parameter, i.e.:

• MatrixSize<Type> where Size can be 2,3,4 for fixed size square matrices or X for dynamic size.
• MatrixXSize<Type> and MatrixSizeX<Type> where Size can be 2,3,4 for hybrid dynamic/fixed matrices.
• VectorSize<Type> and RowVectorSize<Type> for column and row vectors.

With [c++11], you can also use fully generic column and row vector types: Vector<Type,Size> and RowVector<Type,Size>.

See also

class Matrix

Typedefs
template<typename Type >
using	Eigen::Matrix2 = Matrix< Type, 2, 2 >
	[c++11] 2×2 matrix of type Type.
typedef Matrix< std::complex< double >, 2, 2 >	Eigen::Matrix2cd
	2×2 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 2, 2 >	Eigen::Matrix2cf
	2×2 matrix of type std::complex<float>.
typedef Matrix< double, 2, 2 >	Eigen::Matrix2d
	2×2 matrix of type double.
typedef Matrix< float, 2, 2 >	Eigen::Matrix2f
	2×2 matrix of type float.
typedef Matrix< int, 2, 2 >	Eigen::Matrix2i
	2×2 matrix of type int.
template<typename Type >
using	Eigen::Matrix2X = Matrix< Type, 2, Dynamic >
	[c++11] 2×Dynamic matrix of type Type
typedef Matrix< std::complex< double >, 2, Dynamic >	Eigen::Matrix2Xcd
	2×Dynamic matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 2, Dynamic >	Eigen::Matrix2Xcf
	2×Dynamic matrix of type std::complex<float>.
typedef Matrix< double, 2, Dynamic >	Eigen::Matrix2Xd
	2×Dynamic matrix of type double.
typedef Matrix< float, 2, Dynamic >	Eigen::Matrix2Xf
	2×Dynamic matrix of type float.
typedef Matrix< int, 2, Dynamic >	Eigen::Matrix2Xi
	2×Dynamic matrix of type int.
template<typename Type >
using	Eigen::Matrix3 = Matrix< Type, 3, 3 >
	[c++11] 3×3 matrix of type Type.
typedef Matrix< std::complex< double >, 3, 3 >	Eigen::Matrix3cd
	3×3 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 3, 3 >	Eigen::Matrix3cf
	3×3 matrix of type std::complex<float>.
typedef Matrix< double, 3, 3 >	Eigen::Matrix3d
	3×3 matrix of type double.
typedef Matrix< float, 3, 3 >	Eigen::Matrix3f
	3×3 matrix of type float.
typedef Matrix< int, 3, 3 >	Eigen::Matrix3i
	3×3 matrix of type int.
template<typename Type >
using	Eigen::Matrix3X = Matrix< Type, 3, Dynamic >
	[c++11] 3×Dynamic matrix of type Type
typedef Matrix< std::complex< double >, 3, Dynamic >	Eigen::Matrix3Xcd
	3×Dynamic matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 3, Dynamic >	Eigen::Matrix3Xcf
	3×Dynamic matrix of type std::complex<float>.
typedef Matrix< double, 3, Dynamic >	Eigen::Matrix3Xd
	3×Dynamic matrix of type double.
typedef Matrix< float, 3, Dynamic >	Eigen::Matrix3Xf
	3×Dynamic matrix of type float.
typedef Matrix< int, 3, Dynamic >	Eigen::Matrix3Xi
	3×Dynamic matrix of type int.
template<typename Type >
using	Eigen::Matrix4 = Matrix< Type, 4, 4 >
	[c++11] 4×4 matrix of type Type.
typedef Matrix< std::complex< double >, 4, 4 >	Eigen::Matrix4cd
	4×4 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 4, 4 >	Eigen::Matrix4cf
	4×4 matrix of type std::complex<float>.
typedef Matrix< double, 4, 4 >	Eigen::Matrix4d
	4×4 matrix of type double.
typedef Matrix< float, 4, 4 >	Eigen::Matrix4f
	4×4 matrix of type float.
typedef Matrix< int, 4, 4 >	Eigen::Matrix4i
	4×4 matrix of type int.
template<typename Type >
using	Eigen::Matrix4X = Matrix< Type, 4, Dynamic >
	[c++11] 4×Dynamic matrix of type Type
typedef Matrix< std::complex< double >, 4, Dynamic >	Eigen::Matrix4Xcd
	4×Dynamic matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, 4, Dynamic >	Eigen::Matrix4Xcf
	4×Dynamic matrix of type std::complex<float>.
typedef Matrix< double, 4, Dynamic >	Eigen::Matrix4Xd
	4×Dynamic matrix of type double.
typedef Matrix< float, 4, Dynamic >	Eigen::Matrix4Xf
	4×Dynamic matrix of type float.
typedef Matrix< int, 4, Dynamic >	Eigen::Matrix4Xi
	4×Dynamic matrix of type int.
template<typename Type >
using	Eigen::MatrixX = Matrix< Type, Dynamic, Dynamic >
	[c++11] Dynamic×Dynamic matrix of type Type.
template<typename Type >
using	Eigen::MatrixX2 = Matrix< Type, Dynamic, 2 >
	[c++11] Dynamic×2 matrix of type Type.
typedef Matrix< std::complex< double >, Dynamic, 2 >	Eigen::MatrixX2cd
	Dynamic×2 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, Dynamic, 2 >	Eigen::MatrixX2cf
	Dynamic×2 matrix of type std::complex<float>.
typedef Matrix< double, Dynamic, 2 >	Eigen::MatrixX2d
	Dynamic×2 matrix of type double.
typedef Matrix< float, Dynamic, 2 >	Eigen::MatrixX2f
	Dynamic×2 matrix of type float.
typedef Matrix< int, Dynamic, 2 >	Eigen::MatrixX2i
	Dynamic×2 matrix of type int.
template<typename Type >
using	Eigen::MatrixX3 = Matrix< Type, Dynamic, 3 >
	[c++11] Dynamic×3 matrix of type Type.
typedef Matrix< std::complex< double >, Dynamic, 3 >	Eigen::MatrixX3cd
	Dynamic×3 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, Dynamic, 3 >	Eigen::MatrixX3cf
	Dynamic×3 matrix of type std::complex<float>.
typedef Matrix< double, Dynamic, 3 >	Eigen::MatrixX3d
	Dynamic×3 matrix of type double.
typedef Matrix< float, Dynamic, 3 >	Eigen::MatrixX3f
	Dynamic×3 matrix of type float.
typedef Matrix< int, Dynamic, 3 >	Eigen::MatrixX3i
	Dynamic×3 matrix of type int.
template<typename Type >
using	Eigen::MatrixX4 = Matrix< Type, Dynamic, 4 >
	[c++11] Dynamic×4 matrix of type Type.
typedef Matrix< std::complex< double >, Dynamic, 4 >	Eigen::MatrixX4cd
	Dynamic×4 matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, Dynamic, 4 >	Eigen::MatrixX4cf
	Dynamic×4 matrix of type std::complex<float>.
typedef Matrix< double, Dynamic, 4 >	Eigen::MatrixX4d
	Dynamic×4 matrix of type double.
typedef Matrix< float, Dynamic, 4 >	Eigen::MatrixX4f
	Dynamic×4 matrix of type float.
typedef Matrix< int, Dynamic, 4 >	Eigen::MatrixX4i
	Dynamic×4 matrix of type int.
typedef Matrix< std::complex< double >, Dynamic, Dynamic >	Eigen::MatrixXcd
	Dynamic×Dynamic matrix of type std::complex<double>.
typedef Matrix< std::complex< float >, Dynamic, Dynamic >	Eigen::MatrixXcf
	Dynamic×Dynamic matrix of type std::complex<float>.
typedef Matrix< double, Dynamic, Dynamic >	Eigen::MatrixXd
	Dynamic×Dynamic matrix of type double.
typedef Matrix< float, Dynamic, Dynamic >	Eigen::MatrixXf
	Dynamic×Dynamic matrix of type float.
typedef Matrix< int, Dynamic, Dynamic >	Eigen::MatrixXi
	Dynamic×Dynamic matrix of type int.
template<typename Type , int Size>
using	Eigen::RowVector = Matrix< Type, 1, Size >
	[c++11] 1×Size vector of type Type.
template<typename Type >
using	Eigen::RowVector2 = Matrix< Type, 1, 2 >
	[c++11] 1×2 vector of type Type.
typedef Matrix< std::complex< double >, 1, 2 >	Eigen::RowVector2cd
	1×2 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 1, 2 >	Eigen::RowVector2cf
	1×2 vector of type std::complex<float>.
typedef Matrix< double, 1, 2 >	Eigen::RowVector2d
	1×2 vector of type double.
typedef Matrix< float, 1, 2 >	Eigen::RowVector2f
	1×2 vector of type float.
typedef Matrix< int, 1, 2 >	Eigen::RowVector2i
	1×2 vector of type int.
template<typename Type >
using	Eigen::RowVector3 = Matrix< Type, 1, 3 >
	[c++11] 1×3 vector of type Type.
typedef Matrix< std::complex< double >, 1, 3 >	Eigen::RowVector3cd
	1×3 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 1, 3 >	Eigen::RowVector3cf
	1×3 vector of type std::complex<float>.
typedef Matrix< double, 1, 3 >	Eigen::RowVector3d
	1×3 vector of type double.
typedef Matrix< float, 1, 3 >	Eigen::RowVector3f
	1×3 vector of type float.
typedef Matrix< int, 1, 3 >	Eigen::RowVector3i
	1×3 vector of type int.
template<typename Type >
using	Eigen::RowVector4 = Matrix< Type, 1, 4 >
	[c++11] 1×4 vector of type Type.
typedef Matrix< std::complex< double >, 1, 4 >	Eigen::RowVector4cd
	1×4 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 1, 4 >	Eigen::RowVector4cf
	1×4 vector of type std::complex<float>.
typedef Matrix< double, 1, 4 >	Eigen::RowVector4d
	1×4 vector of type double.
typedef Matrix< float, 1, 4 >	Eigen::RowVector4f
	1×4 vector of type float.
typedef Matrix< int, 1, 4 >	Eigen::RowVector4i
	1×4 vector of type int.
template<typename Type >
using	Eigen::RowVectorX = Matrix< Type, 1, Dynamic >
	[c++11] 1×Dynamic vector of type Type.
typedef Matrix< std::complex< double >, 1, Dynamic >	Eigen::RowVectorXcd
	1×Dynamic vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 1, Dynamic >	Eigen::RowVectorXcf
	1×Dynamic vector of type std::complex<float>.
typedef Matrix< double, 1, Dynamic >	Eigen::RowVectorXd
	1×Dynamic vector of type double.
typedef Matrix< float, 1, Dynamic >	Eigen::RowVectorXf
	1×Dynamic vector of type float.
typedef Matrix< int, 1, Dynamic >	Eigen::RowVectorXi
	1×Dynamic vector of type int.
template<typename Type , int Size>
using	Eigen::Vector = Matrix< Type, Size, 1 >
	[c++11] Size×1 vector of type Type.
template<typename Type >
using	Eigen::Vector2 = Matrix< Type, 2, 1 >
	[c++11] 2×1 vector of type Type.
typedef Matrix< std::complex< double >, 2, 1 >	Eigen::Vector2cd
	2×1 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 2, 1 >	Eigen::Vector2cf
	2×1 vector of type std::complex<float>.
typedef Matrix< double, 2, 1 >	Eigen::Vector2d
	2×1 vector of type double.
typedef Matrix< float, 2, 1 >	Eigen::Vector2f
	2×1 vector of type float.
typedef Matrix< int, 2, 1 >	Eigen::Vector2i
	2×1 vector of type int.
template<typename Type >
using	Eigen::Vector3 = Matrix< Type, 3, 1 >
	[c++11] 3×1 vector of type Type.
typedef Matrix< std::complex< double >, 3, 1 >	Eigen::Vector3cd
	3×1 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 3, 1 >	Eigen::Vector3cf
	3×1 vector of type std::complex<float>.
typedef Matrix< double, 3, 1 >	Eigen::Vector3d
	3×1 vector of type double.
typedef Matrix< float, 3, 1 >	Eigen::Vector3f
	3×1 vector of type float.
typedef Matrix< int, 3, 1 >	Eigen::Vector3i
	3×1 vector of type int.
template<typename Type >
using	Eigen::Vector4 = Matrix< Type, 4, 1 >
	[c++11] 4×1 vector of type Type.
typedef Matrix< std::complex< double >, 4, 1 >	Eigen::Vector4cd
	4×1 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, 4, 1 >	Eigen::Vector4cf
	4×1 vector of type std::complex<float>.
typedef Matrix< double, 4, 1 >	Eigen::Vector4d
	4×1 vector of type double.
typedef Matrix< float, 4, 1 >	Eigen::Vector4f
	4×1 vector of type float.
typedef Matrix< int, 4, 1 >	Eigen::Vector4i
	4×1 vector of type int.
template<typename Type >
using	Eigen::VectorX = Matrix< Type, Dynamic, 1 >
	[c++11] Dynamic×1 vector of type Type.
typedef Matrix< std::complex< double >, Dynamic, 1 >	Eigen::VectorXcd
	Dynamic×1 vector of type std::complex<double>.
typedef Matrix< std::complex< float >, Dynamic, 1 >	Eigen::VectorXcf
	Dynamic×1 vector of type std::complex<float>.
typedef Matrix< double, Dynamic, 1 >	Eigen::VectorXd
	Dynamic×1 vector of type double.
typedef Matrix< float, Dynamic, 1 >	Eigen::VectorXf
	Dynamic×1 vector of type float.
typedef Matrix< int, Dynamic, 1 >	Eigen::VectorXi
	Dynamic×1 vector of type int.