Golden Ratio

• Golden Ratio is  numerical number used in designing to make good design.
• Golden Ratio principle is started 2,500 years back.
• Its is represented by Greek letter  " φ " (phi).
• In 1509 Luca Pacioli written book  De Divina Proportione about Golden Ratio.
• Golden Ratio states that sum of two parts (a and b) is divided by longer part (a) is equal to the larger part (a) divided by smaller part (b).

Calculation of phi :

•  Calculation of equation to get (phi) value. 

Fibonacci Sequence :

• Fibonacci Series plays an important role golden ratio.
• Fibonacci Series is nothing but , it is sum of first to numbers.
• In below figure there is an highlighted portion which helps in golden ratio.

• With the Fibonacci series we make golden ratio.
• Below figure shows how golden rectanlge is made with Fibonacci Sequence.
• Area of golden rectangle equal to total sum of squares of Fibonacci Sequence.

Golden Spiral : 

• Dividing rectangle with equal sum of squares.
• A perfect equal squares makes good golden rectangle.

Golden Ratio Examples :

• Some of the examples of golden rectangle and golden rule.
• Golden Ratio helps in building two columns for web browser.