is page containing the (roughly compatible) legacy PETSc license exists for historical purposes.
      </p>

      <h2>Licensing Notification</h2>

      <p>
        Permission to use, reproduce, prepare derivative works, and to
        redistribute to others this software, derivatives of this software, and
        future versions of this software as well as its documentation is hereby
        granted, provided that this notice is retained thereon and on all
        copies or modifications. This permission 