The Vitruvian Man by Leonardo da Vinci depicts a geometric construction producing a recursively defined infinite sequence of pairs of squares and circles.
Starting this sequence with a pair with unequal areas, the ratios of the areas of the following pairs come closer and closer to a value of 1.00037 by every generation.
This behaviour of the ratios takes place very quickly and is called convergence.
This sequence was meant as a solution of the so-called squaring of the circle in an infinite number of steps, that Leonardo claimed to possess.
In his drawing Leonardo exhibited the construction and the sequence on the basis of two successive generations - generation n and generation n+1 - and already in the state of convergence, because both pairs have already equal areas.
And he only showed us the square of generation n and the circle of generation n+1.
The most astonishing fact is that Leonardo discovered this algorithm in the proportions and movements of the human body based on the ideas of ancient architect Vitruv.
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This more advanced script makes a drawing of the complete construction based on the ratio of the areas of the starting pair that you define. Again the ratio of the areas of the starting pair is identical to the area of the first circle of the starting pair, because the area of the first square is defined as 1. Please follow the brief instructions for the script to work.
Here you will find commented pictures and animations. They can be used for educational and scientific purposes. Please note the information regarding use for other purposes. The unaltered illustration of the Vitruvian Man can be used freely.