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

In linear algebra, triangular matrices play a very important role.

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

Please calculate the area of this right-angled triangle.

I analyze data using a spreadsheet software.

My father runs a real estate business.

In order to solve problems, it is important to listen to the opinions of many people, as the saying goes, 'two heads are better than one'.

In this chemical experiment, we will examine the properties of benzoic acid.

Let's calculate the area of this right-angled triangle.

Sanpo Kojin is a god that appears in Japanese mythology.