submodule(specialmatrices_tridiagonal) tridiagonal_eigenvalue_decomposition use stdlib_linalg, only: stdlib_eig => eig, stdlib_eigvals => eigvals implicit none(type, external) contains module procedure eigvals_rdp lambda = stdlib_eigvals(dense(A)) end procedure module procedure eig_rdp real(dp), allocatable :: Amat(:, :) Amat = dense(A) call stdlib_eig(Amat, lambda, right=right, left=left, overwrite_a=.true.) end procedure end submodule