RUDN Journal of Informatization in EducationRUDN Journal of Informatization in Education2312-86312312-864XPeoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)14390Research ArticleSEARCH AND SUBSTITUTION IN NESTED ARRAYSGrigorievS G-EsayanA R-Tula state pedagogical university of L.N. Tolstoy151220163263908122016Copyright © 2016,2016In this article simple algorithms of the solution of recursive algorithms for the simple and generalized search and replacement of elements are given in nested matrixes. The new tasks connected with nested matrixes with numerical or line elements are stated. For record of algorithms language of the environment of engineering and scientific calculations PTC Mathcad Prime is used. In the course of their decision at students the logical, algorithmic information thinking develops.informaticsnested matrixescomputing tasksinformation technologiestraining informatizationинформатикагнездовые матрицывычислительные задачиинформационные технологииинформатизация обучения