00379nam a2200121 a 450000500170000002000150001708200220003210000240005424500650007826000440014330000230018749000470021020251203091511.0  a053409984X  a515.353,bDD, Str  aStrikwerda, John C.  aFinite difference schemes and partial differential equations  aPacific GrovebWadsworth & Brooksc1989  axii, 386p., 24 cm.  aWadsworth & Brooks/Cole mathematics series