In chemistry, we use projections to represent the shape of molecules.

It's difficult to solve this monomial expression.

Everyone, please have a good new year.

He is studying late into the night to learn a new computer language.

This computer is using the latest technology.

A positive-definite matrix is an important concept in linear algebra.

In linear algebra, the upper triangular matrix plays a very important role.

A diagonal matrix is a matrix in which all elements outside the main diagonal are zero.

A lower triangular matrix is a matrix where all the elements below the main diagonal are zero.

I analyze data using a spreadsheet software.