tangent

名词 n. 形容词 adj.
中文释义
发音 tăn'jənt

英文释义

名词 n.
  1. A straight line touching a curve at a single point without crossing it there.
    — One feature of the body, which is constructed of pressed-steel members, is the contour of the sides. They are in the form of a continuous radius from the bottom side to the cant rail, and to enable flat glass windows to be fitted the side panels are pressed around the window opening, forming a tangent to the curved bodyside.
  2. A function of an angle that gives the ratio of the sine to the cosine, in either the real or complex numbers. Symbols: tan, tg.
  3. A topic nearly unrelated to the main topic, but having a point in common with it.
    — I believe we went off onto a tangent when we started talking about monkeys on unicycles at his retirement party.
  4. A visual interaction between two or more lines or edges that creates a perceived relationship between them, often in a way that the artist did not intend.
  5. A small metal blade in a clavichord that strikes the strings to produce sound.
形容词 adj.
  1. Touching a curve at a single point but not crossing it at that point. not-comparable
  2. Of a topic, only loosely related to a main topic. not-comparable
  3. Straight; not horizontally curved. not-comparable
    — The collision occurred on a two-mile stretch of tangent track.

词形变化

tangents plural

词汇关系

衍生词
antitangent arctangent bitangent cotangent fly off at a tangent go off at a tangent go off on a tangent hyperbolic tangent inflectional tangent inverse tangent semitangent subtangent tangental tangent bundle tangentoid tangent plane tangent space tritangent tangently
相关词
tangential cosine non sequitur sine trigonometry

词源

词源 1
Etymology tree
Proto-Indo-European *teh₂g-
Proto-Italic *tangō
Latin tangō
Latin tangēns
Latin tangentembor.
English tangent
Borrowed from Latin tangentem, the accusative of tangēns (“touching”) (in the phrase līnea tangēns (“a touching line”)), the present participle of the verb tangō (“touch”, verb), from Proto-Italic *tangō, from Proto-Indo-European *teh₂g- (“to touch”).
Cognate with Old English þaccian (“to touch lightly, pat, stroke”). More at thack, thwack.
词源 2
Etymology tree
Proto-Indo-European *teh₂g-
Proto-Italic *tangō
Latin tangō
Latin tangēns
Latin tangentembor.
English tangent
Borrowed from Latin tangentem, the accusative of tangēns (“touching”) (in the phrase līnea tangēns (“a touching line”)), the present participle of the verb tangō (“touch”, verb), from Proto-Italic *tangō, from Proto-Indo-European *teh₂g- (“to touch”).
Cognate with Old English þaccian (“to touch lightly, pat, stroke”). More at thack, thwack.
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