|Noun||1.||epsilon - the 5th letter of the Greek alphabet|
|1.||(language)||EPSILON - A macro language with high level features
including strings and lists, developed by A.P. Ershov at
Novosibirsk in 1967. EPSILON was used to implement ALGOL 68
on the M-220.|
["Application of the Machine-Oriented Language Epsilon to Software Development", I.V. Pottosin et al, in Machine Oriented Higher Level Languages, W. van der Poel, N-H 1974, pp. 417-434].
|2.||(character)||epsilon - The fifth letter of the Greek alphabet.|
|3.||(mathematics)||epsilon - (From the Hungarian mathematician Paul Erdos) A very small, insignificant, or negligible quantity of
The use of epsilon is from the epsilon-delta method of proof in differential calculus.