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I am going to write down 2 numbers. Here we go: 0 and 1.
Now let us apply a rule: The next number will be the SUM of the PREVIOUS 2 numbers.
So the 3rd number is going to be 0 + 1 which is 1.
The 4th number is going to be 1 + 1 and so on...
These numbers are called the Fibonacci series and are named after Leonardo Fibonacci, an
Italian Mathematician.
So why are these numbers important?
Fibonacci numbers appear in nature quite often.
For example some lilies have 3 petals, a wild rose has 5, a plantain has 34 and certain
daisies have 55. And YES, these are ALL Fibonacci numbers.
Look at yourself in the mirror: You have 1 nose, 2 eyes and 5 fingers on each hand. The
Fibonacci numbers again.
Now, if you Divide 2 consecutive Fibonacci numbers, the result is pretty close to 1.618.
Ok. Let us do this together. In math, this number is represented by the
Greek symbol 'Phi' and known as the golden ratio.
So what makes the Golden ratio important?
This number has fascinated not only mathematicians but also musicians, artists, architects and
many others. The famous architect Le Corbusier designed
windows whose length and breath ratios were golden ratios.
Similarly artists like Leonardo di Vinci and Salvador Dali used the golden ratio in their
work.
They believed the Golden Ratio made certain shapes more beautiful.
So this ends our short introduction. I hope you found it useful.
See you in the next video.