NATURE OF MATHEMATICS Flashcards
~ Born in Pisa, Italy in 1175 AD
~ Met with many merchants and learned their systems of arithmetic
~ Realized the advantages of the Hindu Arabic system
~ Introduced the Hindu-Arabic number system into Europe
~ Europe previously used the Roman number system
~ Consisted of Roman numerals
~ Persuaded mathematicians to use the Hindu-Arabic number system
~ Based on ten digits and a decimal point
Leonardo Pisano
~ Were introduced in The Book of Calculating
~ Series begins with 0 and 1
~ Next number is found by adding the last two numbers together
~ Number obtained is the next number in the series
~ Pattern is repeated over and over
The Fibonacci Numbers
can be found in the shape of playing cards, windows, book covers, file cards, ancient buildings, and modern skyscrapers.
Golden Rectangles
- The ancient Greeks considered this to be the most aesthetically pleasing of all rectangular shapes.
- It was used many times in the design of the famous Greek temple, the Parthenon.
Golden Rectangle
~ Represented by the Greek letter Phi
~ Phi equals ± 1.6180339887 … and ±
0.6180339887 …
~ Ratio of Phi is 1 : 1.618 or 0.618 : 1
~ Mathematical definition is Phi2 = Phi + 1
~ Euclid showed how to find the golden section of a line
The Golden Ratio
Limit is the positive root of a quadratic equation and is called the
golden section/ratio
The golden section arises from the
fibonacci numbers
Obtained by taking the ratio of successive terms in the Fibonacci series
the golden ratio
The Fibonacci numbers arise from the
golden section
used the golden section to place the f-holes in his famous violins
Stradivari
used the golden section to construct the contour and arch of violins
Baginsky
Golden Mean Gauge: Invented by
Dr. Eddy Levin DDS