Dean spent four months in prison and is now an active political commentator. (G. Gordon Liddy A former FBI agent, Liddy served as general counsel for the Committee to Re-elect the President, which provided money to the Watergate burglars. He spent four and a half years in prison for arranging the botched burglary and participating in related activities.
For Greek loanwords in Latin and modern languages with Latin alphabets, psi is usually transliterated as ps. In English, the letter is pronounced /ËsaÉª/ or sometimes /ËpsaÉª/ . (In Greek, it is pronounced [ËpsiË] .). The letter's origin is uncertain.
The greek letter epsilon, written $\epsilon$ or $\varepsilon$, is just another variable, like $x$, $n$ or $T$. Conventionally it's used to denote a small quantity, like an error, or perhaps a term which will be taken to zero in some limit.