Difference between revisions of "Rational number"
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| − | A '''rational number''' is a quotient of the form <math>\frac{a}{b}</math> where ''a'', ''b'' are [[integer]]s and ''b'' ≠ 0. The set of rational numbers, usually denoted by <math>\mathbb{Q}</math> is an example of a [[totally disconnected set]] that is not [[locally compact]]. The rational numbers are [[countable]]. Rational numbers can be identified by their fractional form, or a terminating or repeating decimal. | + | A '''"rational" number''' is a quotient of the form <math>\frac{a}{b}</math> where ''a'', ''b'' are [[integer]]s and ''b'' ≠ 0. The set of rational numbers, usually denoted by <math>\mathbb{Q}</math> is an example of a [[totally disconnected set]] that is not [[locally compact]]. The rational numbers are [[countable]]. Rational numbers can be identified by their fractional form, or a terminating or repeating decimal. |
[[Category: Mathematics]] | [[Category: Mathematics]] | ||
Revision as of 16:41, October 18, 2009
A "rational" number is a quotient of the form where a, b are integers and b ≠ 0. The set of rational numbers, usually denoted by is an example of a totally disconnected set that is not locally compact. The rational numbers are countable. Rational numbers can be identified by their fractional form, or a terminating or repeating decimal.
