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The Golden Ratio ~ There is one thing that ancient Greeks, Renaissance artists, a 17th century astronomer and 21st century architects all have in common .. they all used the Golden Mean, otherwise known as the Golden Ratio, Divine Proportion, or Golden Section. Precisely, this is the number 1.61803399, represented by the Greek letter Phi, and truly unique in its mathematical properties, its prevalence throughout nature, and its ability to achieve a perfect aesthetic composition.
In Leonardo Da Vinci's "Madonna of the Rocks" a Golden Pyramid frames the composition of the figures.
Subdivisions of the square according to the golden mean
In Leonardo Da Vinci's Last Supper fresco, the Golden Ratio (rear wall and windows) and other relationships based on Fibonacci Numbers (foreground, table and disciple's feet) may be found in the relationship of elements in the composition.