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# The fibonacci sequence

This ppt contains everything about Fibonacci sequence.
From its origin to where it is used and where it is found-EVERYTHING.Hope you like it

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### The fibonacci sequence

1. 1. THE FIBONACCI SEQUENCE
2. 2. What is fibonacci sequence? • Fibonacci sequence is a series of numbers that follow a unique integer sequence. • These numbers generate mathematical patterns that can be found in all aspects of life. • The patterns can be seen in everything from the human body to the physiology of plants and animals. • The fibonacci sequence is derived from the fibonacci numbers.
3. 3. How are these fibonacci numbers obtained? • These numbers are obtained from the formula- Fn=Fn-1+Fn-2 • These numbers are obtained by adding the two previous numbers in the sequence to obtain the next higher number.
4. 4. HOW DOES THE FIBONACCI SEQUENCE WORK? • The Fibonacci sequence is as follows: 0,1,1,2,3,5,8,13,21,34,55,89,144,233,377,610..and so on. • As a rule the first 2 numbers in the sequence has to be 0 and 1 .All other numbers follow the rule of adding the two previous numbers in the sequence. EXAMPLE: 1+1=2, 2+3=5, 5+3=8 • Every third number in the sequence is even.
5. 5. What is the history of the fibonacci sequence? • The exact date of origin of the Fibonacci sequence is unknown. • It is believed that contributions to the theory began in 200 BC by Indian mathematicians whose studies were based in the language of Sanskrit. • The sequence was introduced to Western European mathematicians in 1202 by Aka Fibonacci (famous as the Leonardo of Pisa).
6. 6. • His study of the sequence began with the breeding patterns of rabbits. In which, he found rabbit generations duplicated in accordance with the Fibonacci numbers.
7. 7. Fibonacci rectangle • The Fibonacci rectangle is a rectangle which is further divided into squares whose lengths are the consecutive numbers of the Fibonacci sequence.
8. 8. Fibonacci spiral • This spiral is created by drawing circular arcs connecting the opposite corners of squares in the Fibonacci rectangle. • The numbers form what are called as Fibonacci rectangles. These rectangles are unique because each rectangle has length of sides equal to the magnitude of the Fibonacci numbers. • Within these rectangles we can create a spiral with cross sections equal to exactly 1.618 (the golden mean) with the corresponding angle of 137.5 degrees.
9. 9. Fibonacci in nature
10. 10. Fibonacci sequence in petal patterns • The Fibonacci sequence can be seen in most petal patterns. For example, most daisies have 34,55or 89 petals and most common flowers have 5, 8 or 13 petals.
11. 11. Fibonacci sequence in sunflowers • The Fibonacci sequence can be found in a sunflower heads seed arrangement . • The arrangement of seeds corresponds to Fibonacci spiral and they are arranged in an angle of 137.5 degrees which is also called the ‘golden angle’.
12. 12. Fibonacci sequence in pine cones
13. 13. Fibonacci sequence in sea shells • The Fibonacci spiral directly correspond to the spiral found in sea shells.
14. 14. Fibonacci is also found in monalisa TOO!
15. 15. FIBONACCI SEQUENCE IN HUMAN BODY
16. 16. THANK YOU -SMRUTI S SHETTY XC , G17 Sharada Vidyalaya, Mangalore
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This ppt contains everything about Fibonacci sequence. From its origin to where it is used and where it is found-EVERYTHING.Hope you like it

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