Leonardo Pisa Bigollo

1
Leonardo Pisa Bigollo

• Also known as Leonardo Fibonacci.
• Born in Pisa, Italy, around115.
• Some considered him the most talented
  mathematicians of he middle ages.
• Best known to modern world for spending
  Hindi-Arabic.

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• Fibonaccis father was a wealthy merchant who
  directed trading in Bugia, a part of eat Algers
  in North America
• As a young boy Leonardo traveled with his father
  around North Africa and the Mediterranean to
  study under the leading arabic mathematicians of
  the time.

3

• The reason Leonardo traveled around instead of
  studying in Europe was because he recognized that
  the Hindu-Arabic numeral system was more
  efficient than roman numerals.
• Around 1200 BC he returned to Europe and began
  writing his book in 1202 BC at the age of32 he
  published Liber Abaci or also known as the book
  of calculations.
• This book widely popularized the Hindu-Arabic
  system of numerals.

4

• In his book Fibonacci introduces modus indourm
  method of the Indians, which today is known as
  arabic numerals.
• The book advocated the practical importance of
  the numeral system, 0-9 digits place value,
  Lattia multiplication and Egyptian fractions.
• He showed the practicality by applying modus
  indourm to bookkeeping calculation of interest
  and money changing.
• Liber Abaci had a profound impact on educated
  Europe and European thought in general.

5

• Because of his mathematical contribution, Pisa
  erected a statue of Leonardo, which still stands
  in the gallery of Camtosanto Piazza Pei Miracoli.

6
Brook Taylor

• Taylor as born on August 18, 1685 in Edmonson
  England.
• His parents Olivia tempest, and John Taylor had a
  very stable financial condition.
• Taylor was home tutored before going to college.
• He attended St. Johns College in Cambridge
• He was interested in Art and Music, but his first
  love was mathematics.

7

• Taylor wrote a very important paper in college
  but was not published until 1914 in the
  Philosophical Transactions of the Royal Society.
• Because of Taylors great expertise in math, he
  was elected as a member of the Royal Society by
  Machin and Keill.
• In 1714 Brook Taylor became the secretary of the
  Royal Society.
• He resigned from the demanding position after
  four years because of health issues.

8

• In 1721 he married Miss Brydges they're marriage
  received strong criticism by Taylors father
  because her family was not wealthy.
• In 1723 his wife died in childbirth along with
  the child.
• He then married Sabetta Sawbridge in 1725.
• In 1730 his second wife died also due to
  childbirth but his daughter survived.

9

• Brook wrote two very significant books Methodus
  incrementorum directa et inversa and Linear
  Perspective which were both published in 1715.
• He added a new breach in mathematics known as
  the Calculus of finite differences.
• He was one to invent Integration of Parts and
  also a series called the Taylors Expansion.

10

• Brook Taylor was a great mathematician who
  passed away on November 1731 having given a great
  deal of knowledge to the world of mathematics.
• He is buried on London England in the Churchyard
  in St Annes, Soho

11
Dame Mary Lucy Cartwright

• Mary Cartwright was born on December 17, 1900.
• She lived at Aynho, and was homeschooled until
  she was eleven.
• Cartwright then attended Leamington High School.
• It wasnt until her later high school years that
  she was encouraged to to take more interest in
  mathematics.

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• Mary became one out of five women that was
  studying mathematics ay Oxford University in
  1919.
• She was badly dissapointed in her second year of
  mathematical moderations, when she has received
  second class honors instead of first, which was
  her goal.
• Cartwright considered seriously for a long time
  giving up on mathematics, and going to history,
  but math was her first love so she went on to
  study more.
• She graduated from oxford in 1923 with a
  first-class degree from her Final Honors.

13

• She began to teach mathematics in Buchinghamshire
  for the fore the next four years.
• After teaching she returned to Oxford in 1928
  for her D.Phil.
• In 1930 Mary was awarded with her D.Phil and her
  theses, the zeros of integral functions of
  special types.
• This was published in two parts vol.1 was
  published in 1930, and vol.2 was published in
  1931
• By 1935, Cartwright had been appointed a Lecture
  of Mathematics at Cambridge.

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• She done this career until 1959 when she would
  then become a reader in the Thoery of Functions,
  this position would hold until her retirment.
• She was known as an excellent supervisor of
  those students she accepted.
• During Marys whole career she had writtin over
  100 papers in classical analysis, related
  topological problems, and differental equations.
• She made one of her most important contributions
  to the theory of functions, this became known as
  the Cartwrights theory.

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• Mary retired from Girton in 1969, but continued
  to teach as a visiting professor in Poland,
  America, and England.
• By this time she was elected a fellow of the
  Royal Society.
• She was appointed Dame of the British empire in
  1970.
• Mary Cartwright passed away in 1998.

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http//fabpedigree.com/james/mathmen.htm http//e
n.wikipedia.org/wiki/Brook_Taylor http//en.wikip
edia.org/wiki/Fibonacci http//library.thinkquest
.org/27890/biographies1.html http//en.wikipedia.
org/wiki/Mary_Cartwright http//www.agnesscott.ed
u/lriddle/women/cartwght.htm