as·ymp·tote

NOUN
[MATHEMATICS.]

a straight line approached by a given curve as one of the variables in the equation of the curve approaches infinity.

Source:
Dictionary.com

asymptote | Define asymptote at Dictionary.com
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en.wikipedia.org/wiki/Asymptote

In analytic geometry, an asymptote of a curve is a line such that the distance
between the curve and the line approaches zero as they tend to infinity.

mathworld.wolfram.com/Asymptote.html

An asymptote is a line or curve that approaches a given curve arbitrarily closely,
... Wolfram Web Resource. http://mathworld.wolfram.com/Asymptote.html ...

www.mathsisfun.com/algebra/asymptote.html

Asymptote. A line that a curve approaches, as it heads towards infinity: Asymptote
. Types. There are three types: horizontal, vertical and oblique: Asymptote ...

www.asymptotejournal.com/

And just as Dubravka Ugrešić might be deemed “stateless,” so too can Asymptote
be said to be nationless, to the extent that literary editing is not considered a ...

www.dictionary.com/browse/asymptote

Asymptote definition, a straight line approached by a given curve as one of the
variables in the equation of the curve approaches infinity. See more.

www.purplemath.com/modules/asymtote.htm

Uses worked examples to demonstrate how to find vertical asymptotes. Stresses
the relation between vertical asymptotes and the domain of the function.

en.wiktionary.org/wiki/asymptote

asymptote (plural asymptotes) ... asymptote (third-person singular simple
present asymptotes, present participle asymptoting, simple past and past
participle ...

asymptote.sourceforge.net/

Asymptote, a powerful descriptive vector graphics language for mathematical/
technical drawing, with LaTeX typesetting of labels.