Generalized Symmetric-Definite Eigenproblems

p?sygvx computes selected eigenvalues and, optionally, eigenvectors of a real generalized symmetric-definite eigenproblem.
call pssygvx (ibtype, jobz, range, uplo, n, a, ia, ja, desca, b, ib, jb, descb, vl, vu, il, iu, abstol, m, nz, w, orfac, z, iz, jz, descz, work, lwork, iwork, liwork, ifail, iclustr, gap, info)
call pdsygvx (ibtype, jobz, range, uplo, n, a, ia, ja, desca, b, ib, jb, descb, vl, vu, il, iu, abstol, m, nz, w, orfac, z, iz, jz, descz, work, lwork, iwork, liwork, ifail, iclustr, gap, info)

p?hegvx computes selected eigenvalues and, optionally, eigenvectors of a complex generalized Hermitian-definite eigenproblem.
call pchegvx (ibtype, jobz, range, uplo, n, a, ia, ja, desca, b, ib, jb, descb, vl, vu, il, iu, abstol, m, nz, w, orfac, z, iz, jz, descz, work, lwork, rwork, lrwork, iwork, liwork, ifail, iclustr, gap, info)
call pzhegvx (ibtype, jobz, range, uplo, n, a, ia, ja, desca, b, ib, jb, descb, vl, vu, il, iu, abstol, m, nz, w, orfac, z, iz, jz, descz, work, lwork, rwork, lrwork, iwork, liwork, ifail, iclustr, gap, info)

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