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The word approximation is derived from Latin approximatus, from proximus meaning very near and the prefix ad-(ad-before p becomes ap- by assimilation) meaning to. [1] Words like approximate, approximately and approximation are used especially in technical or scientific contexts.
The English language has a number of words that denote specific or approximate quantities that are themselves not numbers. [1] Along with numerals, and special-purpose words like some, any, much, more, every, and all, they are quantifiers. Quantifiers are a kind of determiner and occur in many constructions with other determiners, like articles ...
Another approximation symbol is the double tilde ≈, meaning "approximately/almost equal to". [14] [16] [17] The tilde is also used to indicate congruence of shapes by placing it over an = symbol, thus ≅.
However two slightly different definitions are common. 1. A ⊂ B {\displaystyle A\subset B} may mean that A is a subset of B , and is possibly equal to B ; that is, every element of A belongs to B ; expressed as a formula, ∀ x , x ∈ A ⇒ x ∈ B {\displaystyle \forall {}x,\,x\in A\Rightarrow x\in B} .
approximately: It should only be used in small spaces. It does not need to be linked. c. circa ('around') In dates, to indicate around, approximately, or about. In text the unitalicised abbreviation c. is preferred over circa, ca, ca., approximately, or approx. It should not be italicised in normal usage.
Different approximate matchers impose different constraints. Some matchers use a single global unweighted cost, that is, the total number of primitive operations necessary to convert the match to the pattern. For example, if the pattern is coil, foil differs by one substitution, coils by one insertion, oil by one deletion, and foal by two ...
Put another way, the "jaws" (the wider section of the symbol) always direct to the larger number. The less-than-sign is sometimes used to represent a total order , partial order or preorder . However, the symbol ≺ {\displaystyle \prec } is often used when it would be confusing or not convenient to use < .
Phono-semantic matching (PSM) is the incorporation of a word into one language from another, often creating a neologism, where the word's non-native quality is hidden by replacing it with phonetically and semantically similar words or roots from the adopting language.