I learned an algorithm to calculate the inverse matrix.

This square matrix has the same number of rows and columns.

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

The calculation of determinants is an important part of mathematics.

I plan to go to the consulate tomorrow.

We often go to that tea house on weekends.

We often go to that tea house on weekends.

I went to watch sumo at the Kokugikan, a sumo arena in Tokyo prefecture.

Mr. Ishiguro is my best friend.

Mr. Enkan is my best friend.