Lambda

For formal system, see Lambda calculus.

Lambda (uppercase/lowercase Λ λ) is a letter of the Greek alphabet. It is used to represent the "l" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 30. Letters that came from it include the Roman L and Cyrillic Л.

In mathematics, the lowercase λ is used as a variable for eigenvalues in linear algebra, and as the parameter of both exponential distribution and Poisson distribution.^[1] In physics, the same symbol is used as a variable representing wavelength.^[2]

Related pages

• Anonymous function, where the word "lambda" is used

References

1. "Greek/Hebrew/Latin-based Symbols in Mathematics". Math Vault. 2020-03-20. Retrieved 2020-10-06.
2. "Lambda Symbol in Greek Alphabet". www.greeksymbols.net. Retrieved 2020-10-06.