The calculation of determinants is an important part of mathematics.

A positive-definite matrix is an important concept in linear algebra.

In linear algebra, the upper triangular matrix plays a very important role.

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.

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

He pointed at the location on the map.

His strength is equal to my strength.

In linear algebra, the transposition of a matrix is an important operation.

When you transpose a matrix, the rows and columns are swapped.