Various linear or nonlinear electronic circuits can be described bythe set of ordinary differential equations (ODEs). The ordinarydifferential equations can be solved in the MATLAB environment inanalytical (symbolic toolbox) or numerical way. The set of nonlinearODEs with high complexity can be usually solved only by use ofnumerical integrator (solver). The modification of ode23 MATLABnumerical solver has been suggested in this article for the applicationin solution of some special cases of ODEs. The main feature of thismodification is that the solution is found at every prescribed point,in which the special behavior of system is anticipated. Theextrapolation of solution is not allowed in those points.