This book contains solved exercises with concise theory and related methodology in ordinary differential equations and ordinary differential systems (of different orders, respectively).
The relevant methods for solving differential equations and systems are detailed and comprehensible. On the other hand, the theoretical part is very limited (all the necessary theorems are stated without proofs).
The objective purpose is for this volume to become a real help for the students of A.E.I. and T.E.I., respectively.
For this reason, this has been harmonized with all the forms and all the ways in which the didactic presentation of the differential equations course is made in the various Universities, Polytechnics and T.E.I. of the country.
For a more complete presentation, it was considered appropriate to mention some applications of differential equations in various scientific disciplines, to include some computer programs that refer to differential equations, and finally to present the most important numerical methods of approximate solutions of differential equations and systems.
This work on differential equations is continued in a second volume, which includes differential equations and systems with partial derivatives and difference equations.