I've noticed that the docs for MINRES say that the operator and the preconditioner must be POSITIVE DEFINITE. But I understand MINRES is tailored for the symmetric/hermitian-indefinite case.
Are the docs wrong? Or the actual code is a (very peculiar) MINRES variant? -- Lisandro Dalc?n --------------- Centro Internacional de M?todos Computacionales en Ingenier?a (CIMEC) Instituto de Desarrollo Tecnol?gico para la Industria Qu?mica (INTEC) Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET) PTLC - G?emes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594
