He is lining his pockets with that project.

He is lining his pockets from that project.

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

He is majoring in applied mathematics at university.

Deuterium is one of the isotopes of hydrogen.

The Fibonacci sequence appears in many phenomena in nature.

The aquifer in this area provides a very abundant water source.

He is good at solving algebraic equations.

He is a world-famous mathematician.

A mixed number is a number that has an integer part and a fraction part.