He sold his share of the company.

He chose independence.

He decided to make his company independent.

He likes to write haibun.

All his actions are nothing but hearsay.

Nutrients are essential for the growth of plants.

I learned how to calculate definite integrals in math class.

The calculation of the antiderivative is a fundamental part of calculus.

The calculus of variations is a branch of mathematics that deals with the optimization of functions.

I am majoring in French literature at university.