Title: Religious views of Isaac Newton
Content:  relevant statute of Trinity College to provide dispensation from this duty. Newton then embarked on an investigative study of the early history of the Church, which developed, during the 1680s, into inquiries about the origins of religion. At around the same time, he developed a scientific view on motion and matter. Of Philosophiæ Naturalis Principia Mathematica he stated: "When I wrote my treatise about our Systeme I had an eye upon such Principles as might work with considering men for the beliefe of a Deity and nothing can rejoyce me more than to find it useful for that purpose."
Title: Scientific Revolution
Content:  first one to correctly formulate laws concerning centrifugal force and discovered the theory of the pendulum) and optics (being one of the most influential proponents of the wave theory of light). ; Isaac Newton (1643–1727) built upon the work of Kepler, Galileo and Huygens. He showed that an inverse square law for gravity explained the elliptical orbits of the planets, and advanced the law of universal gravitation. His development of infinitesimal calculus (along with Leibniz) opened up new applications of the methods of mathematics to science. Newton taught that scientific theory should be coupled with rigorous experimentation, which became the keystone of modern science. People and key ideas that emerged from the 16th and 17th centuries:
Title: Isaac Newton
Content:  Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, theologian, and author (described in his time as a "natural philosopher") widely recognised as one of the greatest mathematicians and physicists of all time and among the most influential scientists. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus. In Principia, Newton formulated the laws of motion and universal gravitation that formed the dominant scientific viewpoint until it was superseded by the theory 
Title: Isaac Newton's occult studies
Content:  Much of what are known as Isaac Newton's occult studies can largely be attributed to his study of alchemy. From a young age, Newton was deeply interested in all forms of natural sciences and materials science, an interest which would ultimately lead to some of his better-known contributions to science. His earliest encounters with certain alchemical theories and practices were during his childhood, when a twelve year old Isaac Newton was boarding in the attic of an apothecaries shop. During Newton's lifetime, the study of chemistry was still in its infancy, so many of his experimental studies used esoteric language and vague terminology more typically associated with alchemy and occultism. 
Title: History of science
Content:  In 1687, Isaac Newton published the Principia Mathematica, detailing two comprehensive and successful physical theories: Newton's laws of motion, which led to classical mechanics; and Newton's law of universal gravitation, which describes the fundamental force of gravity.
Title: History of physics
Content:  The late 17th and early 18th centuries saw the achievements of Cambridge University physicist and mathematician Sir Isaac Newton (1642-1727). Newton, a fellow of the Royal Society of England, combined his own discoveries in mechanics and astronomy to earlier ones to create a single system for describing the workings of the universe. Newton formulated three laws of motion which formulated the relationship between motion and objects and also the law of universal gravitation, the latter of which could be used to explain the behavior not only of falling bodies on the earth but also planets and other celestial bodies. To arrive at his results, Newton invented 
Title: Isaac Newton
Content:  spectrum. His work on light was collected in his highly influential book Opticks, published in 1704. He also formulated an empirical law of cooling, made the first theoretical calculation of the speed of sound, and introduced the notion of a Newtonian fluid. In addition to his work on calculus, as a mathematician Newton contributed to the study of power series, generalised the binomial theorem to non-integer exponents, developed a method for approximating the roots of a function, and classified most of the cubic plane curves. Newton was a fellow of Trinity College and the second Lucasian Professor of Mathematics at the University of Cambridge. He was a devout but unorthodox Christian who privately rejected the doctrine of the Trinity. Unusually for 
Title: Isaac Newton's occult studies
Content:   English physicist and mathematician Isaac Newton produced works exploring chronology, and biblical interpretation (especially of the Apocalypse), and alchemy. Some of this could be considered occult. Also, Newton described himself as a "natural philosopher", and his work is grounded in Aristotelian metaphysics. Newton's scientific work may have been of lesser personal importance to him, as he placed emphasis on rediscovering the wisdom of the ancients. In this sense, some historians, including economist John Maynard Keynes, believe that any reference to a "Newtonian Worldview" as being purely mechanical in nature is somewhat inaccurate. Historical research on Newton's occult studies in relation to his science have also been used to challenge the disenchantment narrative within critical theory. After purchasing and studying Newton's alchemical works, Keynes, for example, opined in 1942 at the tercentenary of Newton's birth that "Newton was not the first of the age of reason, he was the last of the magicians." In the Early Modern Period of Newton's lifetime, the educated embraced a world view different from that of later centuries. Distinctions between science, superstition, and pseudoscience were still being formulated, and a devoutly Christian biblical perspective permeated Western culture.
Title: Isaac Newton in popular culture
Content:  Isaac Newton was an English mathematician, natural philosopher, theologian, alchemist and one of the most influential scientists in human history. His Philosophiae Naturalis Principia Mathematica is considered to be one of the most influential books in the history of science, laying the groundwork for most of classical mechanics by describing universal gravitation and the three laws of motion. In mathematics, Newton shares the credit with Gottfried Leibniz for the development of the differential and integral calculus. Because of the resounding impact of his work, Newton became a science icon, as did Albert Einstein after publishing his theory of relativity more than 200 years later. Many books, plays, and films focus on Newton or use Newton as a literary device. Newton's stature among scientists remains at the very top rank, as demonstrated by a 2005 survey of scientists in Britain's Royal Society (formerly headed by Newton) asking who had the greater effect on the history of science, Newton or Albert Einstein. Newton was deemed the more influential. In 1999, leading physicists voted Albert Einstein "greatest physicist ever"; Newton was the runner-up.
Title: Isaac Newton
Content:  by the site PhysicsWeb gave the top spot to Newton. Einstein kept a picture of Newton on his study wall alongside ones of Michael Faraday and James Clerk Maxwell. The SI derived unit of force is named the newton in his honour. Woolsthorpe By Colsterworth is a Grade I listed building by Historic England through being his birthplace and "where he discovered gravity and developed his theories regarding the refraction of light". In 1816, a tooth said to have belonged to Newton was sold for £730 (US$3,633) in London to an aristocrat who had it set in a ring. Guinness World Records 2002 classified it as the most valuable tooth, which would value approximately £25,000 (US$35,700) in late 2001. Who bought it and who currently has it has not been disclosed.

Question: what area of science did sir isaac newton study?
Answer: Mathematics.