asymptote

/'æsimptout/

Thân thiện

A graph of a hyperbola approaches its asymptote.

Definition

1. Noun:
   • A straight line that is the limiting value of a curve: In mathematics, an asymptote is a line that a curve approaches arbitrarily closely as it extends towards infinity, but never actually meets or crosses at a finite distance. It represents the curve's limiting behavior.
   • A line considered as a tangent at infinity: This is a more technical description, meaning the curve becomes increasingly parallel to the asymptote as its distance from the origin increases without bound.

Usage Examples

• Noun:
  • The graph of the function y = 1/x has the x-axis and y-axis as asymptotes.
  • To understand the function's end behavior, we first need to find its horizontal asymptote.
  • The curve gets closer and closer to the asymptote but theoretically never touches it.

Advanced Usage

• "Approach an asymptote": To get nearer and nearer to a limiting line.
  • As x increases, the value of the function continues to approach its asymptote.
• "Have an asymptote at": To possess a specific line as an asymptote.
  • The function has a vertical asymptote at x = 2.

Variants and Related Words

• Asymptotic (adj): Relating to or of the nature of an asymptote.
  • The two lines show asymptotic behavior.
• Asymptotically (adv): In a way that relates to or approaches an asymptote.
  • The values decrease asymptotically toward zero.

Synonyms

• Limit line: A line that serves as a boundary or limit for a curve's behavior.
• Boundary line: (In this specific mathematical context) A line that defines a curve's ultimate direction.

Related Phrases

(Note: 'Asymptote' is a specific mathematical noun and does not have standard phrasal verbs. However, common verbal phrases used with it include:) - To tend to an asymptote: To move toward an asymptote as a limit. - The graph tends to the asymptote as the variable grows large. - To be asymptotic to: To have the characteristic of approaching a line. - The curve is asymptotic to the line y = 3.

Related Idioms

(Note: There are no common idioms using the word 'asymptote' itself. The concept is sometimes used metaphorically in technical or academic writing.) - Metaphorical Use: Describing a situation that approaches a limit without ever reaching it. - Their efforts to achieve perfection were asymptotic; they came closer but never fully arrived.

Học thuật

Noun

1. a straight line that is the limiting value of a curve; can be considered as tangent at infinity
   • the asymptote of the curve