Szukana fraza: [Abstrakt = "The paper presents selected two methods of solving implicit ordinary differential equations from a variety of methods defined in a object structured numerical library. Library is equipped with a number of methods directly related to the implementation of solutions with constant or variable step integration on the basis of estimated error. Additionary library includes methods for approximation of polynomial solutions which enable power solutions at any point in time with the integration interval. The software also includes methods for tracking the estimated integrating error both local and global which not only enabled the tests of the algorithms but also is helpful in choosing the best method of integration. Object organization library allows creation of programs dedicated to specific subjects research systems dynamics, as well."]

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