00275nam a2200109 a 450000500170000008200150001710000160003224500470004825000090009526000430010430000180014720251203092213.0  a519.4bSAS  aSastry, S.S  aIntroductory Methods of Numerical Analysis  a2nd.  aNew DelhibPrentic-Hall of Indiac1994  axiv,296p.cPB