In the manual, examples consider how various problems of numerical analysis are solved on Mathcad (solution of systems of linear and nonlinear equations, solution of differential equations, approximation of functions, etc.) d. ). It is assumed that the reader has an idea of the basic numerical methods and knows how to use the Mathcad package at least at the most primitive level. Numerical methods are discussed only to the extent necessary to understand the operation of the respective Mathcad. functions. The list of references contains the necessary references to both textbooks on numerical methods and manuals on the Mathcad package.