The finite element method. Linear static and dynamic finite element analysis. .. Chapter 11 presents the computer program DLEARN, which is written in FORTRAN 77 and implements the theoretical and numerical concepts introduced in chapters 3, 5, 7, 9, and 10. The program is intended to deal with linear static and dynamic analysis problems and involves two types of finite elements - the four-node quadrilateral, elastic continuum element and the three-dimensional, elastic truss element. The structures of the program is modular and multipurpose, its open-ended architecture enabling the user to extend and/or alter the program