I believe Mathematics I is all about Basic and Differential Calculus.

Mathematics II deals with Linear Algebra, Integral and Complex Calculus.

Mathematics III possibly deals with Partial Differential Equation, Transform Calculus, Probability and Statistics and topics like Optimization and Linear Programming.

Hello,

The total mathematics subject has so many topics and it is difficult to teach or learn all the topics in one subject. So to simplify the course the mathematics subject is divided into three subjects Mathematics 1, Mathematics 2 and Mathematics 3. Some colleges have these three subject in three different semester and some put two subjects in same semester itself. Few college divide the complete math subject into four sub subjects.