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This calculator determines proportions according to golden ratio. You can read about the golden ratio below the calculator
Golden ratio also known as the divine proportion, golden mean, or golden section is a term for dividing a segment so the long/short ratio is equal to all/long ratio.
This number is constant.
If we suppose that b is 1, a should be equal to golden ratio. Let's substitute it for x
This is square equation. The positive root of the equation is
and it is a golden ratio number
It is irrational number.
The rough approximation of the golden ratio is the long part is 0,62 of all, and the short part is 0,38.