## Definitions

### from The American Heritage® Dictionary of the English Language, 5th Edition.

- noun The numerical value of a real number without regard to its sign. For example, the absolute value of −4 (written |-4|) is 4.
- noun The modulus of a complex number, equal to the square root of the sum of the squares of the real and imaginary components of the number.

### from Wiktionary, Creative Commons Attribution/Share-Alike License.

- noun
*mathematics*For areal number , itsnumerical value withoutregard to itssign ; formally, -1 times the number if the number is negative, and the number unmodified if it is zero or positive; the distance of a quantity from zero on anumber line . - noun
*mathematics*For acomplex number , thesquare root of thesum of thesquares of itsreal andimaginary parts.

### from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

- noun a real number regardless of its sign

## Etymologies

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## Examples

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