Hartree, Douglas Rayner 1897-1958. Numerical analysis - Oxford: Clarendon Press, 1952. - 287 p.: il. graf., cuadros; Nat. Bib. No.: GB52-15484 Subjects--Topical Terms: NUMERICAL CALCULATIONS+DIFFERENTIAL EQUATIONSALGEBRA LINEAL Subjects--Index Terms: CALCULO NUMERICO Universal Decimal Class. No.: 518.12