William Jones (1675 – 3 July 1749) was a Welsh mathematician, born in the village of Llanfihangel Tre'r Beirdd, on the Isle of Anglesey. Events 324 - Battle of Adrianople Constantine I defeats Licinius, who flees to Byzantium. Year 1749 ( MDCCXLIX) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a A mathematician is a person whose primary area of study and research is the field of Mathematics. History There are numerous Megalithic monuments and Menhirs present on Anglesey testifying to the presence of mankind in prehistory

He owed his successful career partly to the patronage of the distinguished Bulkeley family of north Wales, and later to the Earl of Macclesfield. Bulkeley is a village and Civil parish in the Crewe and Nantwich district of Cheshire, England. Earl of Macclesfield is a title that has been created twice The first creation came in the Peerage of England in 1679 in favour of the soldier and politician Charles Gerard

Jones served at sea, teaching mathematics on board ship between 1695 and 1702. After his voyages were over he became a mathematics teacher in London. London ( ˈlʌndən is the capital and largest urban area in the United Kingdom. He also held a number of posts in government offices.

As a mathematician, his most noted contribution is his proposal for the use of the symbol π (the Greek letter pi) to represent the ratio of the circumference of a circle to its diameter. Greek (el ελληνική γλώσσα or simply el ελληνικά — "Hellenic" is an Indo-European language, spoken today by 15-22 million people mainly Pi (uppercase &Pi, lower case &pi) is the sixteenth letter of the Greek alphabet. IMPORTANT NOTICE Please note that Wikipedia is not a database to store the millions of digits of π please refrain from adding those to Wikipedia as it could cause technical problems He became a close friend of Sir Isaac Newton and Sir Edmund Halley. Sir Isaac Newton, FRS (ˈnjuːtən 4 January 1643 31 March 1727) Biography Early years See also Isaac Newton's early life and achievements Edmond Halley FRS (ˈɛdmənd ˈhɔːlɪ ( November 8, 1656 &ndash January 14, 1742) was an English Astronomer In 1712, he became a Fellow of the Royal Society, and was later its Vice-President. Year 1712 ( MDCCXII) was a Leap year starting on Friday (link will display the full calendar of the Gregorian calendar (or a Leap The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660

Jones published Synopsis Palmariorum Matheseos in 1706 , a work which was intended for beginners and which included theorem on differential calculus and infinite series. Differential Calculus, a field in Mathematics, is the study of how functions change when their inputs change In Mathematics, a series is often represented as the sum of a Sequence of terms That is a series is represented as a list of numbers with Navigation was also a topic which interested Jones; his first published work was A New Compendium of the Whole Art of Navigation. Navigation is the process of reading and controlling the movement of a craft or vehicle from one place to another In 1731 he published Discourses of the Natural Philosophy of the Elements.

His son, also named William Jones, was a renowned philologist who discovered the Indo-European language group. Sir William Jones ( September 28, 1746 &ndash April 27, 1794) was an English philologist and student of ancient India

See also

• History of mathematics
• Welsh mathematicians

External links

• William Jones and other important Welsh mathematicians
• http://es.rice.edu/ES/humsoc/Galileo/Catalog/Files/jones.html