Developed calculus and cryptography methods, including the concept of infinity and deciphering codes for the British government.
John Wallis, a 17th-century English clergyman and mathematician, is credited with introducing the symbol ∞ to represent the concept of infinity, revolutionizing the field of mathematics. His work on infinitesimal calculus and cryptography made him a significant figure in the scientific community, earning him a place among the greatest intellectuals of the early Renaissance of mathematics.
Wallis was born on November 23, 1616, in Ashford, Kent, to Revd. John Wallis and Joanna Chapman. He initially attended a school in Ashford but moved to James Movats school in Tenterden in 1625 due to an outbreak of plague. It was at Felsted School, where he was exposed to mathematics in 1631, that his interest in the subject began to take shape.
Wallis' contributions to mathematics are multifaceted. He introduced the concept of infinity, which previously hadn't been adequately represented. His work on infinitesimal calculus, although not as well-known as that of Sir Isaac Newton, was crucial to the development of the field. Wallis' use of 1/∞ to represent an infinitesimal paved the way for future mathematicians to explore and build upon his ideas.
Between 1643 and 1689, Wallis served as chief cryptographer for Parliament and later, the royal court. His expertise in cryptography enabled him to decipher messages and codes, making him a valuable asset to the government. During this time, he developed an interest in codes and ciphers, which would become a lifelong passion.
Wallis married Susanna Glynde in 1645, and they had three children together. He was elected as a Fellow of the Royal Society in 1660 and awarded a Doctor of Divinity degree from Oxford University in 1654. Wallis' legacy extends beyond his mathematical and cryptographic achievements; he was a dedicated educator and served as the Savilian Professor of Geometry at Oxford University from 1649 until his death in 1703.
John Wallis' work has had a lasting impact on modern society. His introduction of the infinity symbol has become a ubiquitous representation in mathematics, science, and philosophy. His contributions to cryptography have influenced the development of secure communication systems, ensuring the confidentiality and integrity of data in the digital age.
Wallis lived during a time of great intellectual and scientific discovery. His contemporaries, including Sir Isaac Newton, Blaise Pascal, and Christiaan Huygens, were also making significant contributions to their respective fields. Wallis' work, although often overshadowed by that of his contemporaries, remains an essential part of the mathematical and cryptographic landscape.
While Wallis' work on infinitesimal calculus was groundbreaking, it was Newton who would go on to develop the method of "fluxions," which eventually became the basis for modern calculus. Wallis' focus on cryptography, however, set him apart from his contemporaries, making him a pioneer in the field.
Wallis was known to be a humble and dedicated educator. His students at Oxford University revered him for his patience and ability to explain complex mathematical concepts with ease.
Born in 1646
Developed calculus independently of Isaac Newton, and made major contributions to the fields of philosophy, politics, and history.
Born in 1623
A 17th-century genius who made major contributions to mathematics, physics, and philosophy, inventing the mechanical calculator and developing the theory of probability. His writings also explored the human condition and faith.
Born in 1629
A 17th-century polymath who made groundbreaking contributions to optics, probability theory, and astronomy, including the discovery of Saturn's rings and the largest moon, Titan.
Born in 1656
Predicted celestial events, including the return of a comet that bears his name, and made significant contributions to navigation, astronomy, and mathematics.
Born in 1561
Developed the Briggsian logarithms, a base-10 logarithmic table that simplified calculations and facilitated advancements in astronomy, navigation, and engineering.
