## REALNUMBER

### Real number

In mathematics, a real number is a value that represents a quantity along a continuous line. The real numbers include all the rational numbers, such as the integer −5 and the fraction 4/3, and all the irrational numbers such as √ and π . Real numbers can be thought of as points on an infinitely long line called the number line or real line, where the points corresponding to integers are equally spaced. Any real number can be determined by a possibly infinite decimal representation such as that of 8.632, where each consecutive digit is measured in units one tenth the size of the previous one. The real line can be thought of as a part of the complex plane, and ...

The above text is a snippet from Wikipedia: Real number

### real number

#### Noun

1. The limit of a convergent sequence of rational numbers, whether the limit is a rational number such as 2, -5, or 2/7 or whether the limit is an irrational number such as the square root of two or the length of the circle whose radius is one.
Every integer is a real number, but not vice versa.
A real number can be regarded abstractly as an equivalence class of Cauchy sequences of real numbers.
2. A floating-point number.
''Even if you pass sqrt an integer, it returns a real number.

The above text is a snippet from Wiktionary: real number