The Greek letter lambda (λ) is a symbol used throughout mathematics, computer science, and physics. Lambda is used to represent the wavelength of a wave when discussing wave forms and equations. In computer science, the symbol is used in the study of “lambda calculus” and anonymous functions.
A wave form in mathematics is often expressed as an equation, or a curve fitted through some points.
The Greek Alphabet is used throughout math to represent variables, constants, and coeffecients within math expressions, formulas, and equations.
The capital Greek letter (Λ).