| LinearSolver | Solver for systems of linear equations (fixed-size) |
| LinearSolverBase | Internal base class |
| LinearSolverX | Solver for systems of linear equations (dynamic-size) |
| LUDecomposition | LU decomposition of a fixed-size matrix |
| LUDecompositionBase | Internal base class |
| LUDecompositionX | LU decomposition of a dynamic-size matrix |
| Matrix | Fixed-size matrix |
| MatrixBase | Internal base class |
| MatrixP | Matrix in projective geometry, fixed-size only |
| MatrixX | Dynamic-size matrix |
| Vector | Fixed-size vector |
| VectorBase | Internal base class |
| VectorX | Dynamic-size vector |
1.5.5