Education Calculating the population using command control in cycles Linear algebra The three-body problem Mathematical statistics Calculation of square level roots Investigation of the field of directions and isoclines of a differential equation Fundamentals of algorithms and programs The Fibonacci Spiral Artificial neuron Calculation of wages Designing Engee scripts using LaTeX Numerical integration A postcard with a view of Russia on New Year's Eve Calculation of loan interest and overpayments. Optimization Thermodynamic processes in the oil and gas industry: calculations of changes in level, volume and pressure Mathematical analysis Building Lissajous curves The Van der Pol oscillator Value added tax (VAT)