Meaning & Definition of word "Lambda"

Lambda

/ˈlæm.də/

noun:

  • 1. The eleventh letter of the Greek alphabet (Λ, λ) used in various fields such as mathematics and physics.
    • Example: In physics, the wavelength is often represented by the symbol lambda.
  • 2. A function defined with an anonymous function definition, used particularly in programming languages like Python.
    • Example: The lambda function in Python allows for quick and concise function definitions.
  • 3. In calculus, the rate of decay in radioactive substances is denoted by lambda.
    • Example: The decay constant, lambda, indicates how quickly a radioactive material will decay.
  • 4. In statistics, lambda may refer to a parameter in certain probability distributions.
    • Example: In the Poisson distribution, lambda represents the average rate of occurrence.

Etymology

Derived from the Greek letter lambda, which is the 11th letter of the Greek alphabet.

Common Phrases and Expressions

lambda calculus:

A formal system in mathematical logic for expressing computation based on function abstraction and application.

lambda function:

A function defined without a name, often used for short-term operations.

lambda expression:

A notation for defining anonymous functions in programming.

Related Words

function:

A relation or expression involving one or more variables, especially in mathematics.

calculus:

A branch of mathematics that studies continuous change.

Slang Meanings of lambda