Classification of Numbers
See also: List of types of numbersDifferent 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":
Classification of Numbers - Specific Uses
... 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 ...
... 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:
“All experience teaches that, whenever there is a great national establishment, employing large numbers of officials, the public must be reconciled to support many incompetent men; for such is the favoritism and nepotism always prevailing in the purlieus of these establishments, that some incompetent persons are always admitted, to the exclusion of many of the worthy.”
—Herman Melville (1819–1891)
Related Subjects
Related Phrases
Related Words