00282nam a2200109 a 450000500170000002000150001708200190003210000170005124500470006826000400011530000170015520251203090446.0  a0876920261  a519.4,bD, sas  aSastry, S.S.  aIntroductory methods of numerical analysis  aDelhibPrentice hall of Indiac1984  ax,200p, 22cm