Structural engineering, computational fluid dynamics. Horst Simon. Matrices from Horst Simon, NAS Systems Division NASA Ames Research Center Moffett Field, CA 94035 USA email: simon :at the domain: nas.nasa.gov phone: (415) 604-4322 The following matrices have the same nonzero pattern: 1) VENKAT01, VENKAT25, and VENKAT50 2) RAEFSKY1 and RAEFSKY2 Names changed (see "fix" script). Minor change 3/31/03: "rua" changed to "RUA" in bbmat.rua header.