The absolute value of a real number x (symbolized |x|) is the unsigned portion of x<ref>http://mathworld.wolfram.com/AbsoluteValue.html</ref> . The absolute value of x is always greater than or equal to 0.
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The absolute value of a [[real number]] ''x'' (symbolized |x|) is the [[unsigned]] portion of x<ref>http://mathworld.wolfram.com/AbsoluteValue.html</ref> . The absolute value of x is always greater than or equal to 0.