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 Euclid called Φ as simply dividing a segment
into what he called "medium" and "extreme
ratio." Here are his words: "We say that a
segment was divided in the mean and
extreme ratio when the whole segment
refers to the larger segment as the largest
segment is reported to the smallest"
 The first clear definition was given by Euclid around
300 BC
 When Hippasus of Metapontum discovered (in the
5th century BC) that Φ is neither a whole number nor a
ratio between two integers, the Pythagoreans were
extremely shocked because the Pythagorean view of
the world was based on an extreme arithmos - the
intrinsic properties of the whole numbers and their
fractions - and their supposed role in the cosmos
 The Pythagorean concept of the world was based on an
extreme of arithmos - the intrinsic properties of whole
numbers and their fractions - and their supposed role
in the cosmos
 Understanding the fact that there are numbers like Φ that
repeats infinitely without showing any repetition or
regularity has caused a real philosophical crisis
 The Pythagoreans were unquestionably convinced that the
existence of numbers like Φ was so scary that it was
supposed to be a kind of cosmic error, information that
should be suppressed and kept secret
 The fact that there are irrational numbers involved also the
discovery of incomensurability. In his work “About the life
of Pythagoras”, the philosopher and historian Iamblichus, a
descendant of a family of Syrian nobles, describes the
violent reaction to this discovery: "They say that the first
man who has them revealed the nature of the
incomensurability of those unworthy of knowing it was so
disliked that he was not only excluded from the Pitagoreic
association and way of life, but that the tomb was built as if
their former colleague had left the living. "
 The gold ratio is an irrational number that
can be calculated from the equation:
(1+√5)/2≈1,61803 39887
Wikipedia sectiunea de aur
https://ro.wikipedia.org/wiki/Sec%C8%9Biunea_de_aur
Project realized by:
Stefan Burlacu
Nita Radu
Hulea Tudor

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The golden ratio history

  • 1.
  • 2.  Euclid called Φ as simply dividing a segment into what he called "medium" and "extreme ratio." Here are his words: "We say that a segment was divided in the mean and extreme ratio when the whole segment refers to the larger segment as the largest segment is reported to the smallest"
  • 3.  The first clear definition was given by Euclid around 300 BC  When Hippasus of Metapontum discovered (in the 5th century BC) that Φ is neither a whole number nor a ratio between two integers, the Pythagoreans were extremely shocked because the Pythagorean view of the world was based on an extreme arithmos - the intrinsic properties of the whole numbers and their fractions - and their supposed role in the cosmos  The Pythagorean concept of the world was based on an extreme of arithmos - the intrinsic properties of whole numbers and their fractions - and their supposed role in the cosmos
  • 4.  Understanding the fact that there are numbers like Φ that repeats infinitely without showing any repetition or regularity has caused a real philosophical crisis  The Pythagoreans were unquestionably convinced that the existence of numbers like Φ was so scary that it was supposed to be a kind of cosmic error, information that should be suppressed and kept secret  The fact that there are irrational numbers involved also the discovery of incomensurability. In his work “About the life of Pythagoras”, the philosopher and historian Iamblichus, a descendant of a family of Syrian nobles, describes the violent reaction to this discovery: "They say that the first man who has them revealed the nature of the incomensurability of those unworthy of knowing it was so disliked that he was not only excluded from the Pitagoreic association and way of life, but that the tomb was built as if their former colleague had left the living. "
  • 5.  The gold ratio is an irrational number that can be calculated from the equation: (1+√5)/2≈1,61803 39887
  • 6. Wikipedia sectiunea de aur https://ro.wikipedia.org/wiki/Sec%C8%9Biunea_de_aur Project realized by: Stefan Burlacu Nita Radu Hulea Tudor