Class List

Here are the classes, structs, unions and interfaces with brief descriptions:

aligned_allocator	STL compatible allocator to use with with 16 byte aligned types
AlignedBox	An axis aligned box
AngleAxis	Represents a 3D rotation as a rotation angle around an arbitrary 3D axis
Array	General-purpose arrays with easy API for coefficient-wise operations
ArrayBase	Base class for all 1D and 2D array, and related expressions
ArrayWrapper	Expression of a mathematical vector or matrix as an array object
ArrayXpr
BandMatrix	Represents a rectangular matrix with a banded storage
Block	Expression of a fixed-size or dynamic-size block
ColPivHouseholderQR	Householder rank-revealing QR decomposition of a matrix with column-pivoting
CommaInitializer	Helper class used by the comma initializer operator
ComplexEigenSolver	Computes eigenvalues and eigenvectors of general complex matrices
ComplexSchur< _MatrixType >	Performs a complex Schur decomposition of a real or complex square matrix
CompressedStorage
Cwise	Pseudo expression providing additional coefficient-wise operations
CwiseBinaryOp	Generic expression where a coefficient-wise binary operator is applied to two expressions
CwiseNullaryOp	Generic expression of a matrix where all coefficients are defined by a functor
CwiseUnaryOp	Generic expression where a coefficient-wise unary operator is applied to an expression
CwiseUnaryView	Generic lvalue expression of a coefficient-wise unary operator of a matrix or a vector
Dense
DenseBase	Base class for all dense matrices, vectors, and arrays
DenseCoeffsBase< Derived, DirectAccessors >	Base class providing direct read-only coefficient access to matrices and arrays
DenseCoeffsBase< Derived, DirectWriteAccessors >	Base class providing direct read/write coefficient access to matrices and arrays
DenseCoeffsBase< Derived, ReadOnlyAccessors >	Base class providing read-only coefficient access to matrices and arrays
DenseCoeffsBase< Derived, WriteAccessors >	Base class providing read/write coefficient access to matrices and arrays
Diagonal	Expression of a diagonal/subdiagonal/superdiagonal in a matrix
DiagonalMatrix	Represents a diagonal matrix with its storage
DiagonalWrapper	Expression of a diagonal matrix
DynamicSparseMatrix	A sparse matrix class designed for matrix assembly purpose
EigenBase
EigenSolver	Computes eigenvalues and eigenvectors of general matrices
Flagged	Expression with modified flags
ForceAlignedAccess	Enforce aligned packet loads and stores regardless of what is requested
FullPivHouseholderQR	Householder rank-revealing QR decomposition of a matrix with full pivoting
FullPivLU	LU decomposition of a matrix with complete pivoting, and related features
GeneralizedSelfAdjointEigenSolver	Computes eigenvalues and eigenvectors of the generalized selfadjoint eigen problem
GeneralProduct	Expression of the product of two general matrices or vectors
HessenbergDecomposition< _MatrixType >	Reduces a square matrix to Hessenberg form by an orthogonal similarity transformation
HessenbergDecompositionMatrixHReturnType< MatrixType >	Expression type for return value of HessenbergDecomposition::matrixH()
Homogeneous	Expression of one (or a set of) homogeneous vector(s)
HouseholderQR	Householder QR decomposition of a matrix
HouseholderSequence	Sequence of Householder reflections acting on subspaces with decreasing size
Hyperplane	A hyperplane
InnerIterator	An InnerIterator allows to loop over the element of a sparse (or dense) matrix or expression
InnerStride	Convenience specialization of Stride to specify only an inner stride See class Map for some examples
IOFormat	Stores a set of parameters controlling the way matrices are printed
AmbiVector::Iterator
JacobiRotation	Rotation given by a cosine-sine pair
JacobiSVD	Two-sided Jacobi SVD decomposition of a rectangular matrix
LDLT	Robust Cholesky decomposition of a matrix with pivoting
LLT	Standard Cholesky decomposition (LL^T) of a matrix and associated features
Map	A matrix or vector expression mapping an existing array of data
Map< const Quaternion< _Scalar >, _Options >	Quaternion expression mapping a constant memory buffer
Map< Quaternion< _Scalar >, _Options >	Expression of a quaternion from a memory buffer
MapBase	Base class for Map and Block expression with direct access
MappedSparseMatrix	Sparse matrix
Matrix	The matrix class, also used for vectors and row-vectors
MatrixBase	Base class for all dense matrices, vectors, and expressions
MatrixWrapper	Expression of an array as a mathematical vector or matrix
MatrixXpr
Minor	Expression of a minor
NestByValue	Expression which must be nested by value
NoAlias	Pseudo expression providing an operator = assuming no aliasing
NumTraits	Holds information about the various numeric (i.e. scalar) types allowed by Eigen
OuterStride	Convenience specialization of Stride to specify only an outer stride See class Map for some examples
ParametrizedLine	A parametrized line
PartialPivLU	LU decomposition of a matrix with partial pivoting, and related features
PartialReduxExpr	Generic expression of a partially reduxed matrix
PermutationBase	Base class for permutations
PermutationMatrix	Permutation matrix
PermutationWrapper	Class to view a vector of integers as a permutation matrix
PlainObjectBase	Dense storage base class for matrices and arrays
ProductReturnType	Helper class to get the correct and optimized returned type of operator*
Quaternion	The quaternion class used to represent 3D orientations and rotations
RealSchur< _MatrixType >	Performs a real Schur decomposition of a square matrix
Replicate	Expression of the multiple replication of a matrix or vector
Reverse	Expression of the reverse of a vector or matrix
Rotation2D	Represents a rotation/orientation in a 2 dimensional space
RotationBase	Common base class for compact rotation representations
Scaling	Represents a generic uniform scaling transformation
Select	Expression of a coefficient wise version of the C++ ternary operator ?:
SelfAdjointEigenSolver	Computes eigenvalues and eigenvectors of selfadjoint matrices
SelfAdjointView	Expression of a selfadjoint matrix from a triangular part of a dense matrix
Sparse
SparseMatrix	The main sparse matrix class
SparseMatrixBase	Base class of any sparse matrices or sparse expressions
SparseSelfAdjointView	Pseudo expression to manipulate a triangular sparse matrix as a selfadjoint matrix
SparseVector	Sparse vector class
Stride	Holds strides information for Map
Transform	Represents an homogeneous transformation in a N dimensional space
Translation	Represents a translation transformation
Transpose	Expression of the transpose of a matrix
Transpositions	Represents a sequence of transpositions (row/column interchange)
TriangularView	Base class for triangular part in a matrix
Tridiagonalization< _MatrixType >	Tridiagonal decomposition of a selfadjoint matrix
TridiagonalMatrix	Represents a tridiagonal matrix with a compact banded storage
VectorBlock	Expression of a fixed-size or dynamic-size sub-vector
VectorwiseOp	Pseudo expression providing partial reduction operations
WithFormat	Pseudo expression providing matrix output with given format