Edit made on December 04, 2008 by GuestEditor at 16:41:13
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HEADERS_END
An Irrational Number is one that cannot be expressed as a ratio.
For example, 2/3 3/5 is clearly a rational number, because it's a ratio.
However, root two is irrational.
Other examples of irrational numbers are EQN:\pi,{\quad}e, (which are transcendental numbers)
and the Golden Ratio EQN:\phi (which is an algebraic number).