Solves a single triangular linear system via frontsolve or backsolve where the triangular matrix is a factor of a banded matrix computed by p?pbtrf.
Given a tridiagonal matrix, sets small off-diagonal elements to zero and for each unreduced block, finds base representations and eigenvalues.
Store internal structures from pardiso to a file.
Initializes the solver.
Initializes the RCI CG solver with MHRS.
Extended Eigensolver interface for generalized eigenvalue problem with banded matrices.
Computes a cube root of vector elements.