CONTENTS:-
1. INTRODUCTION, 2. DIFFERENTIAL EQUATIONS OF FIRST ORDER BUT NOT FIRST DEGREE, 3. TRAJECTORIES, 4. LINEAR DIFFERENTIAL EQUATIONS WITH CONSTANT COEFFICIENTS, 5. HOMOGENEOUS LINEAR DIFFERENTIAL EQUATIONS, 6. ORDINARY SIMULTANEOUS LINEAR DIFFERENTIAL EQUATIONS, 7. WRONSKIANS, 8. LINEAR DIFFERENTIAL EQUATION OF SECOND ORDER, 9. AN INTRODUCTION TO PARTIAL DIFFERENTIAL EQUATIONS, 10. SOME METHODS FOR THE SOLUTION OF PARTIAL DIFFERENTIAL EQUATIONS, 11. POWER SERIES SOL. OF SECOND ORDER DIFFERENTIAL EQUATIONS