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

[detail level 12]

▼Nirlba
CAdjointWorkspace	Workspace class for multiplying a transposed `Matrix`
CCenteredMatrix	Deferred centering of a matrix
CEigenThreadScope	Restrict the number of available threads for Eigen
CMatrix	Interface for a matrix to use in `compute()`
COptions	Options for running IRLBA in `compute()` and `pca()`
CParallelSparseAdjointWorkspace	Workspace for multiplication of a transposed `ParallelSparseMatrix`
CParallelSparseMatrix	Sparse matrix with customizable parallelization
CParallelSparseRealizeWorkspace	Workspace for realizing a `ParallelSparseMatrix`
CParallelSparseWorkspace	Workspace for multiplication of a `ParallelSparseMatrix`
CPcaResults	Results of the IRLBA-based PCA by `pca()`
CRealizeWorkspace	Workspace class for realizing a `Matrix`
CResults	Results of the IRLBA-based SVD by `compute()`
CSimpleMatrix	A `Matrix`-compatible wrapper around a "simple" matrix
CWorkspace	Workspace class for multiplying a `Matrix`