2. Leonardo da Pisa – Fibonacci
Fibonacci is the greatest European
mathematician of the middle ages
Born in 1170 and died in 1240
He introduced the Arabic number
system in Europe
3. Fibonacci Sequence
The sequence in which each number is the SUM of the two
preceding numbers
+ + + + + + + +++
1 2 3 5 8 13 21 34 55 89 2331441
+
5. The Fibonacci sequence in nature: Spirals
Nautilus Shell
Cauliflower
Pine Conehttps://www.mathsisfun.com/numbers/nature-golden-ratio-fibonacci.html
Why do we find the Fibonacci sequence in
nature?
Does nature study mathematics?
Hurricane
Galaxy
6. The Golden Ratio
: : ::
55 89 144 233 377
Every number of the Fibonacci sequence divided for the preceding one
is always:
1.61801.61801.61801.6180
11. To sum up
The Fibonacci sequence:
A sequence in which every number is the SUM of the preceding
two
The Golden Rectangle:
A rectangle built according to the Fibonacci sequence
The Golden Ratio:
The number you get DIVIDING a number of the Fibonacci sequence for
the preceding one:
1.6180