Hans Walser, [20150821]

Visualizations of the Fibonacci recursion

Figure 1 depicts a classical visualization.

 

Fig. 1: Classical

 

We have a spiral arrangement without overlapping squares.

In this figure and also in the following we use a color code according to table 1.

 

No

RGB

Color

Example

New No

Fibonacci

0

0,0,0

Black

 

1

1

1

0,0,1

Blue

 

2

1

2

0,1,0

Green

 

3

2

3

0,1,1

Cyan

 

4

3

4

1,0,0

Red

 

5

5

5

1,0,1

Magenta

 

6

8

6

1,1,0

Yellow

 

7

13

7

1,1,1

White

 

8

21

Tab. 1: Color code

 

In figure 2 we have a linear arrangement.

 

Fig. 2: Linear arrangement

 

This can be done also with other polygons. The figure 3 gives a version with regular triangles.

 

Fig. 3: Regular triangles

 

The figure 4 works with regular pentagons.

 

Fig. 4: Regular pentagons

 

The ŇrooflineÓ is not straightforward, but interrupted.

Taking a geometric sequence based on the golden section

 

                                                       

 

leads to a proper roofline (Fig. 5). But this is no more a Fibonacci sequence. The difference is visible at the beginning.

 

Fig. 5: Golden section

 

Parts of this figure can be used to draw a regular pentagon (Fig. 6).

 

Fig. 6: Pentagon

 

In the following figures we will work again with the Fibonacci sequence.

The figure 7 uses half hexagons.

 

Fig. 7: Half hexagons

 

In figure 8 half circles.

 

Fig. 8: Half circles

 

In figure 9 half circles again, but this time with a golden geometric sequence.

 

Fig. 9: Golden section