| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024ab′solute val′ue, [Math.]- the magnitude of a quantity, irrespective of sign;
the distance of a quantity from zero. The absolute value of a number is symbolized by two vertical lines, as ∥3∥ or ∥-3∥ is 3. - the square root of the sum of the squares of the real and imaginary parts of a given complex number, as ∥a + bi∥ is equal to √a2+b2. Also called modulus.
Collins Concise English Dictionary © HarperCollins Publishers:: absolute value n - the positive real number equal to a given real but disregarding its sign. Written | x |. Where r is positive, | r | = r = | –r |
- Also called: modulus a measure of the magnitude of a complex number, represented by the length of a line in the Argand diagram: |x + iy | = √(x² + y²), so | 4 + 3i | = 5
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