An overview of the work of pappus a greek geometer

After a gap in the manuscript, Pappus begins his comment again in the middle of this subject and proceeds to deal with a further complication.

He was half a millennium from Apollonius and elucidation was probably necessary. See also the article on Guldin.

The lemmas to the Plane Loci are chiefly propositions in algebraic geometryone of which is equivalent to the theorem discovered by R. Kitab testih el koret. The work was reprinted in Johannis Wallis S.

Pars IV Leipzig,Pp. If there are five lines, and the parallelepiped formed by the product of three of the lines drawn from the point at fixed angles bears a constant ratio to the parallelepiped formed by the product of the other two lines drawn from the point and a given length, the point will be on a certain curve given in position.

Pappus wrote several works, including commentaries on Ptolemy 's Almagest and on the treatment of irrational magnitudes in Euclid 's Elements.


Ziegler states that a long interval is not necessary, and that the Collection may have been compiled soon after a. If unequals are added to equals, the excess of one sum over the other is equal to the excess of one of the added quantities over the other.

Book VIII is devoted mainly to mechanics, but it incidentally gives some propositions of geometrical interest. With three exceptions the books are lost, and hence the information that Pappus gives concerning them is invaluable.

In a series of elegant theorems Pappus shows that if a circle with center G is drawn so as to touch all three semicircles, and then a circle with center H to touch this circle and the semicircles ABC, ADE, and so on ad infinitum, then the perpendicular from G to AC is equal to the diameter of the circle with center G, the perpendicular from H to AC is double the diameter of the circle with center H, the perpendicular from K to AC is triple the diameter of the circle with center K, and so on indefinitely.

The book closes with a study of the points of first and last contact during eclipses. It gives an account of the following books in the so-called Treasury of Analysis those marked by an asterisk are lost works: Book 2 addresses a problem in recreational mathematics: The opening section has an interest for the historian of mathematics as it distinguishes the parts played by the Pythagoreans, Theaetetus, Euclid, and Apollonius in the study of irrationals.

Ivor Bulmer-thomas Pick a style below, and copy the text for your bibliography. The analytic proof involved demonstrating a relationship between the sought object and the given ones such that one was assured of the existence of a sequence of basic constructions leading from the known to the unknown, rather as in algebra.

Classical Greece and the early Hellenistic period[ edit ] Further information: He also adds a remarkable comment of his own.

Pappus observes that the study of these curves had not attracted men comparable to the geometers of previous ages. It is an oath that could have been taken equally by a pagan or a Christian, and it would fit in with the dates of Pappus.

New York,pp. A full and excellent conspectus of the Collection is given by Heath, loc. An Arabic manuscript discovered in Iran by N.

Pappus's theorem

He shows how the locus with respect to three or four lines may be represented as an equation of degree not higher than the second, that is, a conic section which may degenerate into a circle or straight line.

The Pythagorean tradition spoke also of so-called polygonal or figurate numbers.

Number theory

What is believed to be essentially an early Armenian trans. The Chinese remainder theorem appears as an exercise [16] in Sunzi Suanjing 3rd, 4th or 5th century CE. He professes to give the solutions of Archimedes by means of a spiral and of Nicomedes by means of the conchoidand the solution by means of the quadratrix, but his proof is different from that of Archimedes.

Ruelle, Collection des anciens alchimistes grecs Paris,pp. Pappus is said to have pointed out that while all right angles are equal to one another, it is not true that an angle equal to a right angle is always a right angle—it may be an angle formed by arcs of circles and thus cannot be called a right angle.

Pappus of Alexandria, (flourished ad ), the most important mathematical author writing in Greek during the later Roman Empire, known for his Synagoge (“Collection”), a voluminous account of the most important work done in ancient Greek mathematics.

Pappus of Alexandria, Greek geometer, flourished about the end of the 3rd century CE. In a period of general stagnation in mathematical studies, he stands out as a remarkable exception.

How far he was above his contemporaries, how little appreciated or understood by them, is shown by the absence of. Pappus of Alexandria was a late Greek geometer whose theorems provided a foundation for modern projective geometry.

Pappus of Alexandria

Virtually nothing is known about his life. He wrote his major work. Pappus’s theorem, in mathematics, theorem named for the 4th-century Greek geometer Pappus of Alexandria that describes the volume of a solid, obtained by revolving a plane region D about a line L not intersecting D, as the product of the area of D and the length of the circular path traversed by.

Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the mathematician Carl Friedrich Gauss () said, "Mathematics is the queen of the sciences - and number theory is the queen of mathematics.".

(c. ) Greek mathematician Pappus was the last notable Greek mathematician and is chiefly remembered because his writings contain reports of the work of many earlier Greek mathematicians that would otherwise be lost.

An overview of the work of pappus a greek geometer
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Pappus of Alexandria