Men of Mathematics
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Al-Khayyami (1048-1131 CE) Middle Eastern: Specialty: Algebra

Born in Iran just prior to the occupation of the area by the Seljuk Turks, he was able to garner the support of many rulers over the years. He wrote not only Astronomical and mathematical works, but works of poetry and philosophy. His major text was Treatise on Demonstrations of Problems of al-Jabr and Al-Muqabala, which was primarily geared towards solutions of cubic equations. However, it was algebraically based, not geometric. He used an approach of reviewing equations of up to degree 3 and then showing solutions of those solvable using only positive solutions.

Muhammud Ibn Musa Al-Khwarizmi (c. 780-850 CE) Islam/Russian: Specialty: Algebra

Born south of the Aral Sea, he was one of the first scholars of the House of Wisdom. Both the Greeks and the Babylonians influenced his math. He wrote ‘The condensed Book on the Calculation of al-Jabr and al-Muqabala’. He was interested in writing a practical mathematics manual. He used geometric proofs to demonstrate his algebraic calculations, like the Babylonians. Also, the influence of oriental mathematicians showed in his numerous examples and problems. In addition, he drew a map of the Islamic world, which was reportedly the best of its time. He is given credit for the term algebra, which was a weak Greek translation of al-Jabr.

Al-Samaw’al (c.1125-1174 CE) Jewish/Iraqi: Specialty: Algebra

Since the House of Wisdom had been closed in Baghdad, he studied independently with others and traveled throughout the Middle East. He was born to well-educated Jewish parents, which allowed him to study religion, math and medicine. He is famous for his introduction of negative coefficients, which made adding and subtracting polynomials a much easier task. He used a chart-based format, ultimately coming up with the law of exponents. The remarkable thing is his major math works were completed by age19. He then turned to medicine and wrote medical texts. He converted to Islam and wrote an autobiography against Judaism, which became a famous work.  

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Kenneth Appel (1932-) American: Specialty: Programming, Graph Theory

This mathematician, while at the University of Chicago solved a famous problem involving four colors not having adjacent sides in a two dimensional surface. The solution involves substantial computer modeling and has been described as not being elegant. His work pioneered a shift in attitudes among some mathematicians in using computers as tools to solve some complex problems.

Archimedes (287-212 BCE) Greek: Specialty: Physical Applications of Mathematics

Son of an Astronomer, many rulers relied upon him to use his knowledge to solve engineering problems facing society. Many of his letters survived and they were directed at the most learned people of his city of Syracuse. He came up with the Archimedean screw for transporting water, the first logical explanation of how a lever works and held the Roman invaders at bay for months. In fact, the Roman leader called for his life to be spared but an angry soldier killed him.

Aristotle (384-322 BCE) Greek: Specialty: Logic

He studied at Plato’s Academy from age 18 until he was 37, when Plato passed on. After a short time educating a Macedonian prince, he started his own school in Athens. He wrote on many subjects, and made terms such as postulates, axioms and syllogisms part of our every day math terminology. He also contributed by providing a distinction between number and magnitude.

Benjamin Banneker (1731-1806 CE) American: Specialty: Surveying, Astronomy

An African- American, his grandmother taught him to read and write.  His abilities were recognized early in his life, although he faced a societal bias of being a free black farmer in the Northern United States.  He was fortunate he was able to borrow technical books and scientific instruments from his neighbors, a family of surveyors.  He taught himself the principles of mathematics, surveying, and astronomy.  He helped survey the District of Columbia and wrote an almanac. 

Jakob (1654-1705 CE) and Johann (1667-1748 CE) Bernoulli Swiss: Specialty: Physics

Jakob taught himself mathematics, while traveling through several European countries. Upon his return home, he became a professor of physics, and then mathematics. His brother, Johann, studied business and medicine, but became enamored with math. Together they mastered the works of Leibniz and wrote about them as well as their discoveries along his line of thought. Johann replaced his brother as a professor upon the elder’s death.  

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Bhaskara (1114-1185 CE) Indian: Specialty: Astronomy, Mechanical Arts

Born into a family of long scholarship, he served as the head of an astronomical observatory much of his life. His father was also an astronomer. He wrote one major astronomical works and two major mathematical works. His grandson founded a college to study his work.

Janos Bolyai (1802-1860 CE) Hungarian: Specialty: Geometry

His father a professor, Bolyai entered the military until retiring due to physical considerations. His father had studied parallels and had conversed with Gauss for years without any resolution. He warned his son not to pursue this area of study, but his son did not listen. Janos wrote Gauss about his discoveries but Gauss told him that he had already made these discoveries although they had not been published. These ideas were later found to be central to the idea of non-Euclidean geometry.

Brahmagupta (598-??? CE) Indian: Specialty: Astronomy

He was also known as Bhillamalacarya. Little is known except he wrote the Correct Astronomical System of Brahma when he was 30. It was a great mathematical work, but much of the math is buried inside calculations for astronomical work, a common thing for Indian mathematicians of the era. Translations and bad copying have weakened our knowledge of this work, but the drawings show clear, full descriptions of how to calculate the answers.

Gerolamo Cardano (1501-1576 CE) Italian: Specialty: General Mathematics

Trained as a physician, but he was denied admission to the Milan professional physicians group due to his illegitimate birth. He practiced in a small city, lectured in mathematics and wrote a textbook on math. He later convinced the Milan physicians to accept him and became in demand throughout Europe. He was brought before the Inquisition in 1570 and found guilty. He was released from prison, lived in Rome and wrote an autobiography.

Augustin-Louis Cauchy (1789-1857 CE) French: Specialty: Engineering, Pure Mathematics

One of the world’s prolific mathematicians of the 19th century, he was a difficult person to get along with.  He trained in engineering and worked in military projects until he was encouraged to pursue mathematics by Laplace and Lagrange.  After he wrote several texts in analysis, the French mathematical community recognized his skills.  His political views prevented him from staying in France until the revolution of 1848.

Nicolaus Copernicus (1473-1543 CE) Prussian: Specialty: Astronomy

Born into a family of means, he was sent to study at the University of Krakow. When he left, he was appointed to a position in the church through family influence. He traveled, studying in Italy and came home to a rather undemanding church position that allowed him to study astronomy. He wrote an in depth manuscript of his theory (De Revolutionibus) but its publication was delayed until he received the encouragement of a Mathematical Professor.

John Dee (1527-1608 CE) English: Specialty: Logic, Astronomy, Symbolism

Graduating from Cambridge, he studied under various mathematicians on the European Continent. He served as the court astrologer to the Queen of England. In his later years he became interested in the mystical elements of math, writing about them and how symbols could be combined to produce the secrets of the physical world. In the end, his mysticism and accusations of the practice of black magic caused him to be exiled from the court. He ultimately died in poverty.  

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Abraham De Moivre (1667-1754 CE) French: Specialty: Physics

Educated classically, his secondary school closed. He transferred and was introduced to probability and physics. He studied Newton’s theory on fluxions and worked further in that area. He was never a university professor, but tutored and worked with games of chance on behalf of gamblers.

Rene Descartes  (1596-1650 CE) French: Specialty: Logic, Philosophy

From Nobility, he was of poor health while growing up. He concluded that much of the information learning in school was of questionable reliability. He traveled extensively, participated in the thirty years war and ultimately settled in Holland. He wrote a major treatise on physics, but did not publish it immediately in fear of the church and the inquisition. He published it after persuasion, as well as several other essays on the physical world. He found acclaim, was hired by the queen of Sweden and tutored her. His health soon failed and he died. 

Euclid (approximately 300 BCE) Greek: Specialty: unknown but generalist

He wrote the most important mathematical text of the time and possibly of all time. The text itself has 13 books, which are broken up into many areas of ‘modern’ mathematics. Little is known about his life, but references from future mathematicians give us an idea he was alive around 300 BCE. There are no copies of the book, but since it has been the most translated work of its time (except the bible) we know something about his work. It is generally agreed this work was a compendium, and has served as a catalyst for some mathematicians, but it is somewhat dull by modern standards.

Leonhard Euler (1707-1783 CE) Swiss: Specialty: Calculus

Euler was recognized very early for his skills in mathematics, but his father did not support his choice until a discussion with Johann Bernoulli. He was turned down for a position in Switzerland due to his age, but found a home with two of Bernoulli’s sons in Russia. Russia at the time had just created an Academy of Sciences in order to modernize itself. He lived with his wife and their 13 children, but politics convinced him to move to Berlin. After confrontations with the King, he went back to Russia. He ultimately went blind, but was still able to contribute because of his ability to perform the calculations in his head.

Galileo Galilei (1564-1642 CE) Italian: Specialty: Astronomy

He started his upper education by pursuing the training of a physician, but found he was more interested in mathematics. He left without a degree, but had a good background of the older mathematics, missing learning about modern algebra. He was brought before the Inquisition as a result of his identification that the earth revolved around the sun. He was sentenced to home imprisonment and no more publishing of his works. He wrote and was published outside the reach of the Inquisition. Most knowledgeable persons had come to the conclusion that the earth was not the center of the universe by this time. The Church eventually had to back down and admit its prior conclusions were incorrect.

Karl Frederic Gauss (1777-1855 CE) German: Specialty: Astronomy, number theory

Coming from a poor family, Gauss showed his prowess in mathematics at a very young age.  He was granted a scholarship to a science-oriented academy and ultimately received a Doctorate.  He wrote many papers discussing his methods of calculating orbits of heavenly bodies.  When war came to the region, he was fortunate that the French general gave specific orders to look out for his welfare. Approximately a year later, Gauss left the occupied area and moved to Gottingen as a professor of astronomy.  Gauss was never happy teaching but he was a prolific writer.  Many of his papers still have an impact on subjects to this day.  

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David Hilbert (1862-1943 CE) Prussian: Specialty: Generalist

Hilbert was one of the major forces behind the rise of the University of Gottingen as one of the premier center of mathematical progress in the early 20th century. His claim to fame is his list of 23 problems that he felt would be of primary importance to the mathematicians of the 20th century. After the Nazi’s assumed power, Hilbert saw Gottingen lose its prominence. He died during the second world war.  

Qin Jiushao (1202-1261 CE) Chinese: Specialty: Generalist, Astronomy

He grew up in the midst of the war under which Genghis Khan conquered much of Northern China. He learned his skills in mathematics from a recluse. In his spare time dodging arrows, he thought about math. He is most famous for his Mathematical treatise in Nine Sections, which took 81 problems and showed how to solve them. Much of Chinese Math at the time was taught through example. He also became rich, built a large house where he housed many female musicians who were reportedly his consorts.

Johannes Kepler (1571-1630 CE) German: Specialty: Astronomy

He studied the theories of Copernicus. Originally he planned to be a minister, but became a math teacher. His work furthered the studies of the universe along with those of Tycho Brahe.

Joseph-Louis LaGrange (1736-1813 CE) Italian: Specialty: Calculus

Born in Turin to a family of French descent, LaGrange was attracted to mathematics and became a professor at 19. He and Euler were friends and he replaced Euler when he left Berlin. After some time, he moved to Paris and wrote his most important work, Analytical Mechanics. This text extended the work of many contemporary mathematicians. He worked on furthering the French educational system and was honored by Napolean.

Pierre Simon De Laplace (1749-1827 CE) French: Specialty: Celestial Mechanics

While he started school to train for a career in the church, he found his true calling in mathematics. He worked training military students while pursuing his studies, writing a number of papers, which allowed him to be recognized for his prowess in math. He wrote on Celestial Mechanics, showing how Newton’s law of gravitation implied long term stability of our solar system. He also wrote on probability and received honors for his contributions to France by being named a marquis by Louis XVIII. He was eulogized as the ‘Newton of France’.

Gottfried Wilhelm Leibniz (1646-1716 CE) German: Specialty: Calculus

Born into an academic family, he learned quickly that he liked to study. His father died when he was six. He taught himself Latin. He studied philosophy in college, but was not awarded a doctorate due to politics. He was awarded his doctorate at a different university, and then turned to studies in philosophy. He invented many of the symbols we use in calculus today. He turned to politics later in life but never quit studying mathematics in the little spare time he had.  

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Leonardo of Pisa (c. 1170-1240 CE) aka Fibonacci Italian: Specialty: Geometry, Algebra

His father a merchant in North Africa, growing up he traveled with him and learned the mathematics of many Moslem teachers. He later traveled on business in the region, learning the math of Islamic scholars. Ultimately he returned home, spending 25 years writing about his math learning in Italian. Both the City of Pisa and the Court of Frederick II recognized him for his contributions.

Isaac Newton (1642-1727 CE) English: Specialty: Calculus, Mathematical Theory

Newton started his life by being raised by his grandmother. He was sent to a grammar school, but found an unusual schoolmaster who taught him plane geometry and geometric constructions. When he went to Cambridge, he was far advanced in math compared to his peers. Through self-study, helped by grants, he learned the majority of 17th century math. He was a man who could exclude all stimuli around him to work on a problem. He was not a great teacher, although he was a professor, as he spoke above his audience. He wrote his studies up for publication, but failed to follow through for the most part so his works ended up being circulated only in the English mathematical community.

Blaise Pascal (1623-1662 CE) French: Specialty: Number theory

Showing his math abilities early, he was exposed to the modern math of France at a very young age, He started his own research before he was 20. He developed a calculating machine and worked on the actions of fluid under air pressure. In his 30’s he became more interested in religious matters and he died prior to his 40th birthday.

Henri Poincare (1854-1912 CE) French: Specialty: Generalist

Born into an upper middle class family, Poincare displayed an aptitude for mathematics early in life, winning several countrywide competitions. He received his doctorate and taught in Caen and Paris. He was a generalist in approach, but wrote extensively about the importance of science and mathematics. He is famous for his observations on the psychology of discovery in mathematics.

Pedro Nunes (1502-1578 CE) Portuguese: Specialty: Algebra, Navigation, Astronomy

A professor of Mathematics and Cartographer for the King of Portugal, he was fortunate to have many of the future leaders of the country as his students. He was of Jewish birth, but never persecuted in the Inquisition as one of his former students was the Inquisitor General. Nunes’s Algebra text was originally written in Portuguese, but he translated it to Spanish to increase its impact on Mathematics.

Pythagoras (572-497 BCE) Greek: Specialty: Number Theory, Geometry

He was considered less of a thinker than a mystic and led his followers in a school of mathematical doctrines. Many of the theories coming from his followers have been credited to Pythagoras and these include research in ratios that led to P. Triples and the P. Theorem.

Robert Record (1510-1558 CE) English: Specialty: Pedagogy

Primarily a writer of Mathematical and Astronomical Texts, he was also a Physician. His texts were written in the form of master and pupil and showed step-by-step technique.

Claude Shannon (1916-2001 CE) American: Specialty: Information Theory

His theories, although written in the 1940’s, about the physical limits of communication circuits in wired and wireless communication are still as solid as when they were written. His work in digital circuitry, before the engineers had addressed the problems, has helped make modern technology what it is today. He designed and worked with artificial intelligence machines while at Bell Labs and MIT.  

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Simon Stevin (1548-1620 CE) Belgian: Specialty: Engineering, Navigation

Born in Belgium, he moved from there to Holland as the area was under Spanish rule. Much of his life was spent in civil service, serving the ruler as engineer, tutor in math and ballistics and advisor in other mathematically based activities. He also served as the quartermaster of the army and dean of a university school of engineering where the curriculum was taught in Dutch. This school provided training for engineers, navigators and merchants. He wrote the texts for the subjects taught at the university where he was dean.

Michael Stifel (1487-1567 CE) German: Specialty: Algebra

Ordained as a Catholic Priest, after disagreeing with several clerical abuses he became an early follower of Martin Luther. He became interested in calculus. After studying the Bible he prophesized the end of the world and in front of his congregation nothing happened. He was discharged from his parish and later studied math at the university level. He became an expert on algebra, writing several texts, and later in life studied more on word calculus and wrote several more texts.

James Joseph Sylvester (1814-1897 CE) English: Specialty: Mathematics Pedagogy

Born into a Jewish family, he studied for several years at Cambridge, but was not allowed to obtain a degree for religious reasons.  He received a degree from Trinity College, Dublin.  He moved to the United States but left because of his hatred of slavery.  Back in England, he spent ten years as an attorney, and then fifteen years as a professor of mathematics.  He moved to the United States after the Civil War and founded the American Journal of Mathematics.

Seki Takakazu (1642-1708 CE) Japanese: Specialty: Algebra

Born into the family of a samurai, he trained as an accountant.  Although he published very few works, those that survived show he understood the theory of equations, including polynomials.  He introduced determinants with setting up and solving equations.  

Karl Weierstrass (1815-1897 CE) German: Specialty: Pedagogy

Headed for a career as a civil servant, Weierstrass found he loved mathematics and taverns. He left the University without a degree and became a high school teacher. After a series of papers, he received a doctorate and a professorship at the University of Berlin. His clear lecturing style won him wide acclaim throughout Europe.

Stephen Wolfram (1959-) British: Specialty: Scientific Computing

Publishing his first scientific paper at 15, receiving his doctorate at 20, Wolfram’s early works were primarily related to physics. He designed the first computer algebra system, and was one of the fathers of complex systems research. His work has led to a wide range of applications including the foundations for complexity theory and artificial life. Following his scientific work on complex systems research, he turned to academics at Caltech, then Princeton, and finally as Professor of Physics, Mathematics, and Computer Science at the University of Illinois. He is responsible for the Mathematica software and continues his research in the areas of physics, biology, computer science and mathematics.

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