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Decimals

Decimal places form the fractional part of a decimal number.

 


Explanation

They are the digits to the right of the decimal point. A radix point is used to separate the integer portion of a number from the fraction portion.

 


Example 1

The number can also be written as

1.5

 


Example 2

A transcendental number has an infinite number of decimals, and a pattern never repeats itself. The best known transcendental number is π. This number represents the ratio of the circumference to the diameter of a circle. It has the value

π = 3,1415…

 


Example 3

If you convert the fraction 1/81 to a decimal number, a pattern that repeats itself emerges

The three dots mean that there are an infinite number of decimals. Therefore, it is a repeating fraction.

 


Example 4

The Copeland-Erdős constant is created by writing all the prime numbers as decimals after each other

C10 = 0. 2 3 5 7 11 13 17 19 23 29 31 37 ...

 


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