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

I analyze data using a spreadsheet software.

Computational linguistics is the study of analyzing human language with computers.

The space complexity of this algorithm is O(n).

The time complexity of this algorithm is O(n).

He is an expert in computer science.

Computational geometry is an important field of computer science.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

Reverse Polish notation is one method of expressing calculations.

This check valve has the role of preventing water from flowing backwards.