Classification of NumbersSee also: List of types of numbers
Different types of numbers are used in many cases. Numbers can be classified into sets, called number systems. (For different methods of expressing numbers with symbols, such as the Roman numerals, see numeral systems.)
|Natural||0, 1, 2, 3, 4, ... or 1, 2, 3, 4, ...|
|Integers||..., −5, −4, −3, −2, −1, 0, 1, 2, 3, 4, 5, ...|
|Rational||a⁄b where a and b are integers and b is not zero|
|Real||The limit of a convergent sequence of rational numbers|
|Complex||a + bi where a and b are real numbers and i is the square root of −1|
Read more about this topic: Number
Other articles related to "classification of numbers, of numbers, numbers":
... There are also other sets of numbers with specialized uses ... Some are subsets of the complex numbers ... For example, algebraic numbers are the roots of polynomials with rational coefficients ...
Famous quotes containing the word numbers:
“Out of the darkness where Philomela sat,
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—John Crowe Ransom (18881974)