| asSparseMatrix | Sparse matrix |
| Eigen_absdet | Absolute value of the determinant |
| Eigen_chol | Cholesky decomposition of a matrix |
| Eigen_cos | Matrix cosine |
| Eigen_cosh | Matrix hyperbolic cosine |
| Eigen_det | Determinant of a matrix |
| Eigen_exp | Exponential of a matrix |
| Eigen_inverse | Inverse of a matrix |
| Eigen_isInjective | Check injectivity |
| Eigen_isInvertible | Check invertibility |
| Eigen_isSurjective | Check surjectivity |
| Eigen_kernel | Kernel of a matrix |
| Eigen_kernelDimension | Dimension of kernel |
| Eigen_log | Logarithm of a matrix |
| Eigen_logabsdet | Logarithm of the absolute value of the determinant |
| Eigen_lsSolve | Linear least-squares problems |
| Eigen_pinverse | Pseudo-inverse of a matrix |
| Eigen_pow | Matricial power |
| Eigen_QR | QR decomposition of a matrix |
| Eigen_range | Range of a matrix |
| Eigen_rank | Rank of a matrix |
| Eigen_sin | Matrix sine |
| Eigen_sinh | Matrix hyperbolic sine |
| Eigen_sqrt | Square root of a matrix |
| Eigen_UtDU | 'UtDU' decomposition of a matrix |
| print.SparseMatrix | Sparse matrix |
| SparseMatrix | Sparse matrix |