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1. Oxford American Dictionary

   tangent

   • IPA[ˈtanj(ə)nt]

   美式

   • n.
     a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.；a completely different line of thought or action
   • adj.
     (of a line or plane) touching, but not intersecting, a curve or curved surface

   • noun: tangent, plural noun: tangents

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. a straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.
   • 2. a completely different line of thought or action he quickly went off on a tangent about wrestling
   • 3. the trigonometric function that is equal to the ratio of the sides (other than the hypotenuse) opposite and adjacent to an angle in a right triangle.

   adj.

   形容詞

   • 1. (of a line or plane) touching, but not intersecting, a curve or curved surface this curve is tangent to the average cost curve

   arc tangent

   • n.
     a mathematical function that is the inverse of the tangent function.

   Oxford American Dictionary

   arc tangent

   • n.
     a mathematical function that is the inverse of the tangent function.

   Oxford Dictionary

3. • 更多解釋

   tangent

   • IPA[ˈtan(d)ʒ(ə)nt]

   英式

   • n.
     a straight line or plane that touches a curve or curved surface at a point, but if extended ...
   • adj.
     (of a line or plane) touching, but not intersecting, a curve or curved surface: this curve is tangent to the average cost curve

   Oxford Dictionary