Decaffeinated coffee comes from a chemical process that takes out caffeine from the beans. Pharmaceutical and soda companies buy the extracted caffeine.
IDEMPOTENT
idempotent
(adjective) unchanged in value following multiplication by itself; “this matrix is idempotent”
Source: WordNet® 3.1
Etymology
Adjective
idempotent (not comparable)
(mathematics, computing) Said of a function: describing an action which, when performed multiple times on the same subject, has no further effect on its subject after the first time it is performed.
(mathematics) Said of an element of an algebraic structure with a binary operation (such as a group or semigroup): when the element operates on itself, the result is equal to itself.
(mathematics) Said of a binary operation: that all of the distinct elements it can operate on are idempotent (in the sense given just above).
(mathematics) Said of an algebraic structure: having an idempotent operation (in the sense above).
Usage notes
See the Usage notes section of nullipotent.
Coordinate terms
• nilpotent
• nullipotent
Noun
idempotent (plural idempotents)
(mathematics) An idempotent element.
(mathematics) An idempotent structure.
Source: Wiktionary
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Coffee Trivia
