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.

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.

A positive-semidefinite matrix is one of the important concepts in linear algebra.

He is an expert in computational linguistics and is involved in the development of artificial intelligence.