modulus
/ˈmɒdjʊləs/Mathematics 【数】
noun
(pl. moduli /-laɪ/)
1
- another term for ABSOLUTE VALUE.
1.1
- 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模。
2.1
- a constant indicating the relation between a physical effect and the force producing it模。
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。
词源
mid 16th cent. (denoting an architectural unit of length)： from Latin, literally 'measure'， diminutive of modus.