-- card: 4577 from stack: in -- bmap block id: 0 -- flags: 0000 -- background id: 2586 -- name: -- part contents for background part 23 ----- text ----- Most of this section can be found in standard texts on differential equations. e.g. E. Kreyszig "Advanced Engineering Mathematics" Chapter 3 e.g. M. Braun "Differential equations and their applications" Chapter 3