3. What is Calculus?
• From Latin, calculus, a small stone used for counting
• A branch of mathematics including limits, derivatives,
integration, and infinite sums
• Used in science, economics, and engineering
6. Ancient History
• In the earliest years, integral calculus was being used as
an idea, but was not yet formalized into a system.
• Calculating volumes and areas can be traced to the
Egyptian Moscow papyrus (1820 BC).
7. Ancient Greeks
• Greek mathematician Eudoxus (408-355 BC) used the
method of exhaustion, a precursor to limits, to calculate
area and volume
• Archimedes (287-212 BC) continued Eudoxus’ idea and
invented heuristics, similar to integration, to calculate
area.
8. Medieval History
• In about 1000 AD, Islamic mathematician, Ibn al-In about 1000 AD, Islamic mathematician, Ibn al-
Haytham (Alhacen) derived a formula for the sum ofHaytham (Alhacen) derived a formula for the sum of
the fourth powers of an arithmetic progression,the fourth powers of an arithmetic progression,
later used to perform integration.later used to perform integration.
• In the 12In the 12thth
century, Indian mathematician Bhaskara IIcentury, Indian mathematician Bhaskara II
developed an early derivative. He described andeveloped an early derivative. He described an
early form of what will later be “Rolle’s Theorem”early form of what will later be “Rolle’s Theorem”
• Also in the 12Also in the 12thth
century, Persian mathematiciancentury, Persian mathematician
Saraf al-Din al-Tusi discovered the derivative of aSaraf al-Din al-Tusi discovered the derivative of a
cubic polynomialcubic polynomial
9. Modern History
• Bonaventure Cavalieri said that volumes be
computed by the sums of the volumes of cross
sections. (This was similar to Archimedes’s).
• However, Cavalieri’s work was not well respected,
so his infinitesimal quantities were not accepted at
first.
10. Modern History
• Formal study combined Cavalieri’s infinitesimal
quantities with finite differences in Europe. This
was done by John Wallis, Isaac Barrow, and James
Gregory
• Barrow and Gregory would later prove the 2nd
Fundamental Theorem of Calculus in 1675.
11. Enter Newton…
• Isaac Newton (English) is credited with many of the
beginnings of calculus. He introduced product rule, chain
rule and higher derivatives to solve physics problems.
• He replaced the calculus of infinitesimals with geometric
representations.
• He used calculus to explain many physics problems in his
book Principia Mathematica, however he had developed
many other calculus explanations that he did not formally
publish.
12. …and Leibniz
• Gottfried Wilhelm Leibniz (German) systemized the ideas of
calculus of infinitesimals. Unlike Newton, Leibniz provided a
clear set of rules to manipulate infinitesimals.
• Leibniz spent time determining appropriate symbols and
paid more attention to formality.
• His work leads to formulas for product and chain rule as well
as rules for derivatives and integrals.
13. Newton vs. Leibniz
• There was much controversy over who (and thusThere was much controversy over who (and thus
which country) should be credited with calculuswhich country) should be credited with calculus
since both worked at the same time.since both worked at the same time.
• Newton derived his results first, but LeibnizNewton derived his results first, but Leibniz
published first.published first.
14. Newton vs. Leibniz
• Newton claimed Leibniz stole ideas from
unpublished notes written to the Royal Society.
• This divided English-speaking math and continental
math for many years.
15. Newton vs. Leibniz
• Today it is known that Newton began his work with
derivatives and Leibniz began with integrals. Both
arrived at the same conclusions independently.
• The name of the study was given by Leibniz,
Newton called it “the science of fluxions”.
16. Since then…
• There have been many contributions to build upon Newton
and Leibniz.
• Calculus was put on a more rigorous footing by
mathematicians such as Cauchy, Riemann, and Weierstrass
17.
18. Thanks to All from group A
Head of the group A
Ehatsham Riaz
Other Members
Muhammad Hamza Rao
Abdullah
Asif Mehmood
Hassan Raza
Editor's Notes
Calculus comes from the Latin word calculus which were stones used for counting.
Includes limits, derivatives, integrals and infinite sums. You will study the first three topics in detail next year. We will study limits in detail and derivatives a bit.
Used in many science fields and economics for optimization and cost analysis.
Builds on algebra, geometry
The idea of calculating areas and volumes by using easier, known formulas has been used since ancient times. These ideas later became formal integration.
The Egyptian Moscow papyrus is one of the oldest examples of calculating the surface area of a curved surface.
Eudoxus formalized a method to find the area of a circle using inscribed polygons. Increase the number of the sides to reach the area of the circle.
Archimedes used this method later to calculate pi, find other areas and volumes.
The studies in the medieval period were more focused on the derivative side of calculus rather than the integral side. This is a shift to more formal study of abstract mathematics. Notice, most of the study was done in the far east as opposed to Europe.
Cavalieri corresponded with Galileo and considered himself a disciple of Galileo. His work on infinitesimal quantities was correct but lacked mathematical rigor. Thus it was criticized and not fully accepted in his time.
Wallis used arithmetic to show his area under a curve as an integral (the first time in print). Wallis also introduced the symbol for infinity in his text.
Barrow improved on Fermat’s work for a method of finding tangents (later derivatives). He and Gregory would prove the 2nd Fundamental Th. Of calculus. Although Gregory understood the ideas of calculus, he could not express them well and therefore credit for the discovery was not given to him.
Newton attended Barrow’s lectures and later was recommended for his chair when Barrow retired from Trinity College. His study with astronomy and physics led to his formalizing of calculus as a mathematical study.
Leibniz work gives us much of the common notation used in calculus today. His work was published one year before Newton’s book.