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Blaise Pascal

Blaise Pascal

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Blaise Pascal

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  1. BlaisePascal Lucia Fecková PavolJozefŠafárik University in Košice

  2. Blaise Pascal *19 June 1623 (Clermont-Ferrand, France) +19 August 1662 (Paris, France) • a French mathematician, physicist, inventor, writer and Christian philosopher • child prodigy

  3. Early life and education • losthismotherattheageofthree • asyoung, heshowed an amazing aptitude for mathematics and science • firstseriouswork- “Essay on Conics”

  4. Essay on Conics • inspired by work of Desargues on conicsections • follow his thinking • it is known as Pascal'stheorem It states that if an arbitrary six points are chosen on a conic (i.e., ellipse, parabolaor hyperbola) and joined by line segments in any order to form a hexagon, then the three pairs of opposite sides of the hexagon (extended if necessary) meet in three points which lie on a straight line, called the Pascal line of the hexagon.

  5. Early life and education • losthismotherattheageofthree • asyoung, heshowed an amazing aptitude for mathematics and science • firstseriouswork- “Essay on Conics” • construction a mechanical calculator called Pascal's calculator- Pascaline

  6. Mathematics • Traitédu triangle arithmétique- described a convenienttabularpresentationforbinomialcoefficients

  7. Pascal’s triangle

  8. Mathematics • Traitédu triangle arithmétique- described a convenienttabularpresentationforbinomialcoefficients • he corresponded with Fermat mathematical theory of probabilities the notion of expected value

  9. Philosophyofmathematics • Del'Espritgéométrique– published a century after his death • He used it to develop a theory of definition: 2 types of definitions • the first one are suitable for mathematics and science 2. definitions within the language and understood by everyone 1. conventional labels defined by the writer

  10. Physical science • His inventions: • thehydraulic press • thesyringe

  11. Works • TheProvincialLetters • Pensées theologicalwork was not completed before his death it is widely considered to be a masterpiece, and a landmark in French prose

  12. Quotes ”Do you wish people to think well of you? Don't speak well of yourself.” “Truth is so obscure in these times, and falsehood so established, that, unless we love the truth, we cannot know it.” “Kind words do not cost much. Yet they accomplish much.” “You always admire what you really don't understand.”

  13. Thank you for your attention