It is important to understand the importance of health.

Understanding geometric series is important in learning the basics of advanced mathematics.

Calculating infinite series is one of the more difficult parts of mathematics.

Problems about arithmetic series often appear in math tests.

It's difficult to calculate the sum of this convergent series.

The harmonic series continues indefinitely, but its sum is not finite.

Discrete mathematics is an important field that forms the basis of computer science.

He is majoring in applied mathematics at university.

He is passionate about researching pure mathematics.

He is a world-famous mathematician.