Math 2.0

concept

Absolute value

Summary

The absolute value of a number is its distance from 00. We write ∣x∣|x| for the absolute value of xx. For a real number, ∣x∣|x| is xx without its sign, for example ∣−3∣=∣3∣=3|-3| = |3| = 3. For a complex number a+bia + b i, the absolute value is the modulus a2+b2\sqrt{a^2 + b^2}.

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  • 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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Sources

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

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