Abstract algebra is a branch of mathematics that studies algebraic structures.

Abstract algebra is a field of mathematics that studies algebraic structures in an abstract way.

This eigenfunction is one of the fundamental concepts of quantum mechanics.

He makes a living through rice work.

The Kingdom of Swaziland is a small country in Africa.

Twin primes are a special existence in mathematics.

My scientific calculator can perform very advanced calculations.

In chemistry class, I learned about alkanes.

Alkynes play a very important role in organic chemistry.

Alkenes, also known as olefin hydrocarbons, play an important role in organic chemistry.