Homework assignments for Computing practicum at St. Petersburg State University Demonstration Task #1. Computational methods for solving non-linear equations. Demo Task #2. The problem of algebraic interpolation Demo Task #3.1. The inverse interpolation problem Demo Task #3.2. Finding derivatives of a table-defined function by numerical differentiation formulas Demo Task #4.1. Approximate calculation of definite integrals Demo Task #4.2. Approximate calculation of integral by quadrature formulas Demo Task #4.3-4.4. Approximate calculation of the integral by composite quadrature formulas Demo Task #5.1. Approximate calculation of definite integrals Demo Task #5.2.1. QF of Gauss, its nodes and coefficients. Calculation of integrals using Gauss QF Demo Task #5.2.2. QF of Mehler, its nodes and coefficients. Calculation of integrals using Mehler QF Demo Task #5.3. Approximate calculation of integral using a composite Gauss QF Demo