## modulusA term with several meanings in mathematics. The modulus of a real number is its positive value, shown by placing the number between vertical lines: thus |-2| = |+2| = 2. The modulus (or absolute value) of a complex number z,
where z = x + iy, is defined as √(x^{2}
+ y^{2}). If z is represented by a point in an
Argand diagram, then its modulus
r, is the distance from the origin to that point. Again, the term
modulus sometimes refers to a constant of proportionality. In logarithms,
if log = _{a}xk log, where
_{b}xa and b are different bases, k is known as the
mdulus. ## Related category• MATHEMATICAL TERMINOLOGY | |||||

Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact |