Contains the necessary theoretical material, numerous examples of problem solving, samples of codes of used algorithms of computational mathematics In ideological terms, it repeats the hard-to-read publications of foreign authors on the use of MATLAB as a programming language for the development of original numerical algorithms. It is recommended to use as a tutorial on the basics of numerical methods (based on the Scilab software product) in the field of mathematical programming, Mathematical modeling of simple physical processes , and also as a guide and guide in preparation for calculation and graphic works , Tests at various levels, the Course of Applied Numerical Methods and Applications of Computational Mathematics .