He crossed the road.

He drew a cross.

What is the volume of this box?

This math problem requires finding the product.

He was able to solve the complex calculation quickly.

He was calculating in his head.

It became as cold as the snow piling up.

I love cross-stitch and I make a little progress every day.

This column vector is a basic concept of linear algebra.

A row vector is one of the basic concepts in linear algebra.