MATH 4400, History of Mathematics Lecture 7: The early 18th Century Professor: Peter Gibson [email protected] http://people.math.yorku.ca/pcgibson/math4400 October 27, 2015 Overview and historical context The 18th century is characterized by political absolutism, by intellectual revolution—the Enlightenment—and, in the latter part, by monumental political revolutions. It is the period in which mathematics took on its modern form, adopting efficient notation and sophisticated theory that was able to treat previously unassailable problems and to begin to understand the mechanics of the universe. P. Gibson (YorkU) Math 4400 27.10.2015 2 / 15 Development of Calculus P. Gibson (YorkU) Math 4400 27.10.2015 3 / 15 The dissemination of mathematics in the late 17th and early 18th centuries rested largely on personal communication. Two incipient new forums that emerged as important at this time were: P. Gibson (YorkU) Math 4400 27.10.2015 4 / 15 The dissemination of mathematics in the late 17th and early 18th centuries rested largely on personal communication. Two incipient new forums that emerged as important at this time were: the Royal Society; P. Gibson (YorkU) Math 4400 27.10.2015 4 / 15 The dissemination of mathematics in the late 17th and early 18th centuries rested largely on personal communication. Two incipient new forums that emerged as important at this time were: the Royal Society; the Acta Eruditorum. P. Gibson (YorkU) Math 4400 27.10.2015 4 / 15 Leibniz was an external member of the Royal Society P. Gibson (YorkU) Math 4400 27.10.2015 5 / 15 P. Gibson (YorkU) Math 4400 27.10.2015 6 / 15 The work of Newton and Leibniz provided new tools which were taken up by others and applied to a range of previously intractable problems. P. Gibson (YorkU) Math 4400 27.10.2015 7 / 15 The work of Newton and Leibniz provided new tools which were taken up by others and applied to a range of previously intractable problems. A number of mathematicians who took up the mantle had the same name: Bernoulli. P. Gibson (YorkU) Math 4400 27.10.2015 7 / 15 P. Gibson (YorkU) Math 4400 27.10.2015 8 / 15 The brachistochrone problem, posed in the Acta Eruditorum by Johann Bernoulli, was solved by Newton, Leibniz and Jakob Bernoulli. Later the journal backed Leibniz in his bitterly-contested rivalry with Newton. P. Gibson (YorkU) Math 4400 27.10.2015 9 / 15 Some Russian history (again) St. Petersburg was founded in 1703 P. Gibson (YorkU) Math 4400 27.10.2015 10 / 15 Peter the Great (ruled 1682-1725) P. Gibson (YorkU) Math 4400 27.10.2015 11 / 15 Catherine the Great (ruled 1762-1796) P. Gibson (YorkU) Math 4400 27.10.2015 12 / 15 The contemporary Prussian monarch was Frederick the Great (1740-1786) P. Gibson (YorkU) Math 4400 27.10.2015 13 / 15 Which brings us to Euler (1707-1783) P. Gibson (YorkU) Math 4400 27.10.2015 14 / 15 Two of Euler’s many, many works: Methodus inveniendi lineas curvas maximi minimive proprietate gaudentes, sive solutio problematis isoperimetrici latissimo sensu accepti (1744) Introductio in analysin infinitorum (1748) P. Gibson (YorkU) Math 4400 27.10.2015 15 / 15 Two of Euler’s many, many works: Methodus inveniendi lineas curvas maximi minimive proprietate gaudentes, sive solutio problematis isoperimetrici latissimo sensu accepti (1744) Introductio in analysin infinitorum (1748) Euler is often credited to bringing mathematics into its modern form. P. Gibson (YorkU) Math 4400 27.10.2015 15 / 15
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