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Math 2.0

Real functions Concept

Absolute value

Summary

The absolute value of a number is its distance from $0$ . We write $|x|$ for the absolute value of $x$ . For a real number, $|x|$ is $x$ without its sign, for example $|-3| = |3| = 3$ . For a complex number $a + b i$ , the absolute value is the modulus $\sqrt{a^2 + b^2}$ .

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Further reading

Web https://en.wikipedia.org/wiki/Absolute_value, lead section

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Tag	`0FFXKTKKQC`
URI	`m2://0FFXKTKKQC`
Aliases	`modulus`
Kind	concept
Writing	W1 stated
MSC	26A03
Same as	Wikidata Q120812 Wikipedia Absolute value

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edge equivalent in: a statement for each pair of definitions that a source proves equivalent (0 of 1)
edge instance_of in: at least two examples (0 of 2)
edge not_instance_of in: at least one non-example (0 of 1)
edge specializes both: the more general notions and the special cases (0 of 1)

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