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In projective geometry and related contexts, an asymptote of a curve is a line which is tangent to the curve at a point at infinity. [1] [2] The word asymptote is derived from the Greek ἀσύμπτωτος (asumptōtos) which means "not falling together", from ἀ priv. + σύν "together" + πτωτ-ός "fallen". [3]
A similar definition applies to space curves and curves in n-dimensional Euclidean space. The point where the tangent line and the curve meet or intersect is called the point of tangency. The tangent line is said to be "going in the same direction" as the curve, and is thus the best straight-line approximation to the curve at that point.
Google Dictionary is an online dictionary service of Google that can be accessed with the "define" operator and other similar phrases [note 1] in Google Search. [2] It is also available in Google Translate and as a Google Chrome extension.
The word horizontal is derived from the Latin horizon, which derives from the Greek ὁρῐ́ζων, meaning 'separating' or 'marking a boundary'. [2] The word vertical is derived from the late Latin verticalis, which is from the same root as vertex, meaning 'highest point' or more literally the 'turning point' such as in a whirlpool.
cab Cabernet Sauvignon cabriolet caff (UK slang) café cal calorie (in combination, especially "lo-cal") Cal or Cali California Calcutta cam camera camouflage camo camouflage Can Canada or Canadian (in combination)
Attack or attach; go straight on (i.e. at the end of a movement, a direction to attach the next movement to the previous one, without a gap or pause). Often used as "attacca subito," meaning a "sudden" movement transition (literally, "attack suddenly"). Ausdruck (Ger.) Expression ausdrucksvoll or mit Ausdruck (Ger.) Expressively, with expression
Tangent (clavichord), a part of the action of the clavichord that both initiates and sustains a tone, and helps determine pitch; Tangent (tangent piano), a part of the action of the tangent piano that only initiates the sound by striking the string(s) and rebounding immediately in the manner of a piano
The azimuth is the angle formed between a reference direction (in this example north) and a line from the observer to a point of interest projected on the same plane as the reference direction orthogonal to the zenith.