Absolute Value (mathematics).
Publié le 12/05/2013
Extrait du document
Absolute Value (mathematics). Absolute Value (mathematics), or modulus, in mathematics, the value, or magnitude, of a number irrespective of its sign. The absolute value of a number n is written n (or sometimes as mod n ), and is defined as the positive square root of n 2. For example, the numbers -5 and 5 have the same absolute value: 5 = -5 = 5 For a complex number, the absolute value is its distance to the origin when it is plotted on an Argand diagram. The absolute value can be calculated (without plotting) by applying the Pythagorean theorem. By definition, the absolute value of any complex number a + ib (where a and b are real numbers and i is [radical]-1) is given by the expression: a + ib = [radical](a2 + b 2) Microsoft ® Encarta ® 2009. © 1993-2008 Microsoft Corporation. All rights reserved.
Liens utiles
- Calculus (mathematics) I INTRODUCTION Limits This graph, which charts the function f(x)=1x, shows that the value of the function approaches zero as x becomes larger and larger.
- Brandenburg Technical University Cottbus Department 1, Institute of Mathematics Chair for Numerical Mathematics an Scientific Computing Prof.
- plus-value & économie.
- Comment calculer une plus-value immobilière ?
- Chapitre XII du Capital de Marx: La plus-value relative