λ (EN)

letter, symbol

letter “λ”

1. the eleventh letter of the Greek alphabet
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   The letter λ is used for various concepts in science.

symbol “λ”

1. (in physics) symbol representing wavelength, the distance between successive crests of a wave
   The scientist measured the wavelength λ to determine the light's color.
2. (in mathematics and computer science) represents an anonymous function or function abstraction in programming
   The developer used a λ to create a concise function.
3. (in linear algebra) represents an eigenvalue in equations involving matrices
   Finding the λ of the matrix is essential to solve the system.
4. (in physics) denotes linear density, such as mass per unit length
   The engineer calculated the λ of the cable for structural analysis.