The plural of *modulus* is **moduli**.

*Modulus is a mathematical term used to refer to the absolute value or magnitude of a number or complex quantity. It represents the distance of a number from the origin on a number line or the magnitude of a complex number in the complex plane. The modulus of a real number is always positive, while the modulus of a complex number is its distance from the origin.*

- Single Examples:
*The***modulus**of -5 is 5, as it represents the absolute value of the number.*In the complex plane, the***modulus**of a complex number a + bi is calculated as sqrt(a^2 + b^2).*They used the***modulus**operator in programming to obtain the remainder of a division operation.

- Plural Examples:
*They studied different mathematical properties of complex***moduli**in their advanced calculus course.*Engineers often use the concept of***moduli**in signal processing and digital communication systems.*We explored applications of***modulus**in cryptography and number theory.

Sources: