Modulus
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- In advanced theoretical physics, a modulus is a scalar field with no potential energy. See moduli.
- In materials science, modulus (or elastic modulus) is a measure of the stiffness of a material. See also Young's modulus
- In mathematics, the modulus of a number (real or complex) is its absolute value. The modulus of a vector is its length.
- The word modulus also denotes the number by which two numbers are said to be congruent in modular arithmetic.
- The word modulo, which is the Latin ablative of modulus, has many meanings (all somewhat related) in mathematics and computing. See modulo.
- Another mathematical sense is the modulus of continuity.