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needs to be improved...commented out statement in question
<div style="border: 1px solid #c0b8cc; background-color: #f0e5ff; width: 80%; margin: 0 auto 1em auto; padding: .2em; text-align:center">This article or section needs to be rewritten, because:<BR> ''the initial statement of logic is unclear''. ([[talk:{{PAGENAMEE}}|Discuss]])</div><includeonly>[[category:Articles needing a rewrite]]</includeonly>
The '''absolute value''' of a number is a measure of the size of that number. The absolute value of <math>x</math> is written <math>|x|</math>.
The '''absolute value''' of a number is a measure of the size of that number. The absolute value of <math>x</math> is written <math>|x|</math>.
:If <math>x</math> is a positive number, then <math>|x| = x</math>.
:If <math>x</math> is a positive number, then <math>|x| = x</math>.
<!--:If <math>x</math> is a negative number, then <math>|-x| = x</math>. -->
:If <math>x</math> is a negative number, then <math>|-x| = x</math>.
:If <math>x=0</math> then <math>|x| = 0</math>.
:If <math>x=0</math> then <math>|x| = 0</math>.