He is an expert in ichthyology and has a deep knowledge of marine life.

My father runs a warehouse business.

A Hermitian matrix refers to a matrix that is equal to its complex conjugate transpose.

I learned an algorithm to calculate the inverse matrix.

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

An identity matrix is a square matrix in which all the elements on the diagonal are 1 and all other elements are 0.

He is devoting all his energy to that work.

My goldfish is very cute.

She put a doll in the corner of the room.

He is the founder of this company.