Golden numbers

Friday 26 June 2015

The Fibonacci Sequence is a series of numbers where each number is the sum of the two preceding numbers. For example: 1, 1, 2, 3, 5, 8, 13, 21, 33, and so on.

Part of the magic of this sequence is that as it progresses the ratio between each number and the next (that number divided by the previous number) settles at approximately 1:1.618034. This ratio has become known as the Golden Ratio.

A visual representation of the Fibonacci Sequence can be seen in the Golden Rectangle, which is built from squares corresponding in size to the numbers in the Fibonacci Sequence. Taking this a step further, we can trace a spiral through the sequence of squares with each square having a quarter circle.

The Golden Rectangle is a visual representation of the Fibonacci Sequence

The Fibonacci Sequence, the Golden Ratio, and the spiral are frequently seen in nature, and have been imitated for centuries in visual arts of all kinds. For example, you will find the Fibonacci Sequence in pine cones, flowers, and pineapples, and the spiral from the Golden Rectangle is found in sea shells – most noticeably in that of the nautilus.

Whether from familiarity through omnipotence or genuine superiority, the ratio of 1:1.618034 is considered to be perfectly balanced.

In graphic design these theories can be applied very successully to provide pleasing proportions to divisions of space, or the size of related elements. The size and placement of almost every element on the page could theoretically be determined using the Golden Ratio. The page size itself, the width of columns, the shape and position of the text block, and the relative size of images can all be calculated using the same principles.

Applying the Golden Ratio to page layout

Why would we do this? Well, the eye often responds well to visual harmony. A page that has pleasing proportions will be more restful to look at, which is ideal for long reads like novels or textbooks. For designers it helps to provide a framework to work within, and often to deviate from where needed. In a calm and pleasingly proportioned design it is possible to make important messages stand out simply by breaking the pattern.

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