As an alternative to lambda, this symbol is often used to denote an empty string in computer science.
As an alternative to lambda, this symbol is often used to denote an empty string in computer science. In physics, it is the symbol used to represent the permittivity of free space in several electromagnetic formulae. In calculus (*), it is used to define an arbitrarily small number when defining a limit. Representing the lowest social class and least intelligent human type in Aldous Huxley's New World, FTP, name this fifth letter of the Greek alphabet that looks like a backwards three.
As an alternative to lambda, this symbol is often used to denote an empty string in computer science.
{Epsilon}