The Scientific Calculus is a very important tool in the design of structures and buildings since it allows to compute with sufficient precision the behavior of structures undergoing external forces. The aim of the course is the introduction of basic methods of the numerical analysis. In particular the following problems will be considered: solution of linear and nonlinear systems, computation of the eigenvalues of a matrix, approximation of functions and data, numerical differentiation and integration, and solution of ordinary differential
equations and numerical approximation of boundary value problems. The convergence and the properties of the numerical methods are discussed. An important feature of the course is the use of MATLAB® in order todevelop some programs to solve simple problems and verify the theoretical results.