the.com/epsilon
the smallest gap you're still legally allowed to call a difference.
means a symbol for an arbitrarily small positive quantity, used to say how close is close enough.
from fifth letter of the greek alphabet, borrowed by 19th-century mathematicians like weierstrass and cauchy to formalize limits and rigorously pin down what infinitely close actually means.
epsilon-deltathe proof technique that tamed calculus in the 1800s
hacker slangmeans a tiny amount, as in epsilon effort
machine epsilonthe smallest gap a computer can tell apart
paul erdoscalled children epsilons, meaning small quantities
for instance
epsilon greedy algorithm — reinforcement learning, explores randomly with probability epsilon