## Definitions

### from The American Heritage® Dictionary of the English Language, 4th Edition

- n. The numerical value of a real number without regard to its sign. For example, the absolute value of -4 (written }-4}) is 4. Also called numerical value.
- n. The modulus of a complex number, equal to the square root of the sum of the squares of the real and imaginary parts of the number.

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

- n. For a real number, its numerical value without regard to its sign; 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 a number line.
- n. For a complex number, the square root of the sum of the squares of its real and imaginary parts.

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

- n. a real number regardless of its sign

## Etymologies

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## Examples

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