secant
/see-kant, -kuhnt/US // ˈsi kænt, -kənt //UK // (ˈsiːkənt) //
割裂,割裂的,割线,割裂式
Definitions
n.名词 noun
- 1
- : Geometry. an intersecting line, especially one intersecting a curve at two or more points.
- : Trigonometry. the ratio of the hypotenuse to the side adjacent to a given angle. a line from the center of a circle through one extremity of an arc to the tangent from the other extremity.the ratio of the length of this line to that of the radius of the circle; the reciprocal of the cosine of a given angle or arc. Abbreviation: sec
adj.形容词 adjective
- 1
- : cutting or intersecting, as one line or surface in relation to another.
Examples
On any secant of an hyperbola the segments between the curve and the asymptotes are equal.
The fraction Δy/Δx is the trigonometrical tangent of the angle which the secant PP′ makes with the axis of x.
If the curve has a tangent at P the secant PP′ approaches a limiting position (see 33 below).
There is no necessary connexion between a conical projection and any touching or secant cone.
I say they are equall in the alterne angles of the secant and touch line oey, and oeu.
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