Euler didn't discover calculus. He made major contributions to calculus throughout his career, but the foundations of calculus were put forth by Newton and Leibniz.
He did better than that.He invented it.
Yes. He also had help from one person
In mathematics, he was the original discoverer of the infinitesimal calculus.
he invented calculus, discovered universal gravitation, and the reflecting telescope
Newton discovered calculus, along with Leibniz. The rest were discovered centuries if not millenia before Newton's birth.
Isaac Newton. He invented Differential Calculus before the age of 26, and some say he continued to discover and explore it at the same rate that we learn about it today.
Calculus; by a long shot.
Gottfried Leibniz did not discover kinetic energy, as the concept was developed later. However, he did contribute to the study of motion and energy through his work on calculus and the principle of vis viva, an early concept related to the conservation of energy.
Pre-calculus refers to concepts that need to be learned before, or as a prerequisite to studying calculus, so no. First one studies pre-calculus then elementary calculus.
Just about all of calculus is based on differential and integral calculus, including Calculus 1! However, Calculus 1 is more likely to cover differential calculus, with integral calculus soon after. So there really isn't a right answer for this question.
Calculus is calculus. There isn't really another word for it.