Augustin Louis Cauchy

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Augustin Louis Cauchy

• 1789-1857
• A Soulwinning Mathematician

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• Wrote 789 Mathematical papers
• Helped progress the study on partial differential
  equations
• Helped progress the study of polygons
• In 1811 he proved that the angles of a convex
  polyhedron are determined by its faces

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• He discovered new methods of integration and
  lectured on them.
• He was the first to make a rigorous definition of
  the conditions for the convergence of infinite
  series.
• In 1829 he defined for the first time a complex
  function with a complex variable

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Devout Christian

• Cauchy would often visit sick friends and led
  them to faith in Christ.
• Yet he did not always have good relations with
  all scientists because of his Catholic views.
  His Catholicism associated him with the Jesuits
  who quarreled with the Académie des Sciences.

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Devout Christian

• Although he was a Catholic, many of his views
  on Christianity parallel those of the Puritans
  and Protestants. For instance
• he thought that it was necessary to bring
  religion into his work and his workplace.
• He also believed that exploration and scientific
  progress would benefit mankind and bring glory to
  God.
• He gave a report on the theory of light and
  attacked an author that said that Newton had not
  believed that people had souls.

This was said about him by a French journalist,
It is a curious thing to see an academician who
seemed to fulfill the respectable functions of a
missionary preaching to heathens.
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Life During the French Revolution

• During the Second French Revolution Cauchy was
  exiled from France. Before the civil war he had
  taken an oath to Charles X. Because he was an
  honest man he would not break that oath to take
  another. He continued his work in Italy for a
  while and learned to speak their language well.
  Then he moved to Prague with Charles where he
  taught the prince and was given the title of
  Baron by the king.

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• Cauchy is considered one a Frances finest
  mathematicians.
• He furthered the mathematics in nearly every
  field, especially calculus .