Fibonacci numbers are a sequence of numbers where each number is the sum of the two preceding numbers, starting with 0 and 1. The sequence goes like this: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, etc. These numbers were first discovered by Leonardo Fibonacci in the 13th century and have many applications in mathematics and science.
To add two Fibonacci numbers, you simply add the two preceding numbers in the sequence. For example, to add 8 and 13, you would add 8+13=21. This follows the pattern of the Fibonacci sequence, where each number is the sum of the two preceding numbers.
To subtract two Fibonacci numbers, you start with the larger number and subtract the smaller number from it. For example, to subtract 13 from 21, you would do 21-13=8. This also follows the pattern of the Fibonacci sequence, where each number is the sum of the two preceding numbers.
Fibonacci numbers have many applications in mathematics, science, and even nature. They can be used to model growth patterns, such as in the growth of some plants and animals. They also have applications in number theory, geometry, and even music.
Technically, there is no limit to how large Fibonacci numbers can get. However, as the numbers get larger, it becomes more difficult to calculate them accurately due to the limitations of computer storage and processing power. In practical applications, Fibonacci numbers are usually only calculated to a certain number of digits.