cardiologist holding a heart. Cardiologists treat disease and injury of the heart and cardiovascular system. The Cardiologist Job Description can be divided into two parts; Cardiologist and Interventional Cardiologist. A cardiologist is a physician who specializes in diagnosing, treating and preventing diseases of the cardiovascular system, which includes the heart and the blood vessels.
Newton actually discovered calculus between 1665 and 1667 after his university closed due to an outbreak of the Plague. Newton was only 22 at the time, and he preferred not to publish his discoveries. Meanwhile, in Germany, Leibniz discovered Calculus independently and he was very open with his findings. This led to a bitter dispute between the two mathematicians later known as the Great Sulk. Today it is well known that both men discovered calculus independantly of the other, Leibniz about 8 years after Newton.
Both branches make use of the fundamental notions of convergence of infinite sequences and infinite series to a well-defined limit. Generally, modern calculus is considered to have been developed in the 17th century by Isaac Newton and Gottfried Leibniz. Today, calculus has widespread uses in science, engineering and economics and can solve many problems that elementary algebra alone cannot. Calculus is a part of modern mathematics education. A course in calculus is a gateway to other, more advanced courses in mathematics devoted to the study of functions and limits, broadly called mathematical analysis. Calculus has historically been called the calculus of infinitesimals, or infinitesimal calculus.