~~An '''irrational number''' is a ~~#REDIRECT [[~~real number]] that cannot be expressed as the ratio of two [[integers]]. ~~ ~~Irrational numbers often arise as solutions to problems involving rational numbers. For example, the square root of 2 is irrational. Other irrationals, such as [[pi]], serve as fundamental constants in many mathematical problems.~~ ~~Irrational numbers can never be expressed exactly using decimal notation with a finite number of digits. Instead it is common to write them using only enough significant digits to solve the problem at hand, followed by an ellipsis (…):~~ ~~:<math>\pi\ = 3.1415926...</math>~~ ~~==See also==~~ ~~[[Transcendental numbers]]~~ ~~[[Category:mathematics~~ASSFLY JUST LOOVVVVVVVEEEEEEEEESSSSSSSS Z'S MASSIVE COCK]]