I am working using a spreadsheet software.

His calculating nature sometimes causes problems.

Please check the statement of account.

It's difficult to solve this formula.

The calculation of determinants is an important part of mathematics.

My child attends a supplementary school every Saturday.

He is studying late into the night to learn a new computer language.

This computer is using the latest technology.

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

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