tangent
의미: A straight line that touches a curve at a single point without crossing it, or the trigonometric ratio of the opposite to adjacent sides of a right-angled triangle.
In geometry, a tangent line touches a curve at exactly one point and indicates the direction of the curve at that point. In trigonometry, the tangent function (often abbreviated as tan) is the ratio of sine to cosine. Informally, 'going off on a tangent' means diverging from the main subject, a metaphor drawn from the geometric sense of departing from a curve.
예문
- The tangent to the circle at that point was perpendicular to the radius. 在该点处,圆的切线与半径垂直。La tangente al círculo en aquel punto era perpendicular al radio.その点における円の接線は半径に対して垂直であった。그 점에서 원의 접선은 반지름에 대해 수직이었다.
- He calculated the tangent of the angle using a scientific calculator. 他用科学计算器计算了该角的正切值。Calculó la tangente del ángulo con una calculadora científica.彼は関数電卓を使ってその角の正接を計算した。그는 공학용 계산기를 사용하여 그 각의 탄젠트를 계산했다.
- The lecturer went off on a tangent about Renaissance art before returning to the syllabus. 讲师在回到课程大纲之前,突然跑题谈起了文艺复兴时期的艺术。El profesor se fue por la tangente hablando del arte renacentista antes de volver al temario.講師はシラバスに戻る前に、ルネサンス美術の話に脱線した。강사는 강의 계획으로 돌아오기 전에 르네상스 미술 이야기로 한참 곁길로 빠졌다.
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사용 가이드
맥락: academic, scientific
어조: neutral
기원과 역사
From Latin tangens (touching), present participle of tangere (to touch). The mathematical sense was introduced by the Danish mathematician Thomas Fincke in 1583.
문화적 배경
Era: Modern
Generation: All ages
Social background: Universal
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