This is clearly a start to the process of integral calculus.

The next significant advances in integral calculus did not begin to appear until the 16th century.

By the age of 8, he was familiar with differential and integral calculus.

Here, integral calculus is used for the first time in solving technical problems.

Just an introduction to differential and integral calculus is given.

Following in the same year, he was also appointed professor of differential and integral calculus.

He was the author of one of the first books on integral calculus.

He made himself an authority on the integral calculus.

During that time, Maria studied both differential and integral calculus.

The foundations of differential and integral calculus had been laid.