modulus

modulus
[ˈmɒdjʊləs]
(Mathematics)()
(pl. moduli -lʌɪ, -liː)
  1. another term for absolute value
    同 absolute value
    ■the positive square root of the sum of the squares of the real and imaginary parts of a complex number
    模数
  2. a constant factor or ratio

    ■a constant indicating the relation between a physical effect and the force producing it

  3. a number used as a divisor for considering numbers in sets, numbers being considered congruent when giving the same remainder when divided by a particular modulus
    模数
语源
  1. mid 16th cent. (denoting an architectural unit of length): from Latin, literally measure', diminutive of modus
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