Takahashi_Davis         Takahashi equations
cholPermute             Sparse Cholesky factorisation with fill-in
                        reducing permutations
cholsolve               Solve the equation Qx = y
cholsolveAQinvAT        Solve the equation X = AQ^-1t(A) under
                        permutations
densify                 Densify with explicit zeroes
sparseinv-package       sparseinv
symb                    Return the symbolic representation of a Matrix
