| 释义 |
secant
 secantse·cant S0199900 (sē′kănt′, -kənt)n. Abbr. sec1. a. A straight line intersecting a curve at two or more points.b. The straight line drawn from the center through one end of a circular arc and intersecting the tangent to the other end of the arc.c. The ratio of the length of this line to the length of the radius of the circle.2. The reciprocal of the cosine of an angle in a right triangle.
[From Latin secāns, secant-, present participle of secāre, to cut; see sek- in Indo-European roots.]secant (ˈsiːkənt) n1. (Mathematics) (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the adjacent side; the reciprocal of cosine. Abbreviation: sec 2. (Mathematics) a line that intersects a curve[C16: from Latin secāre to cut] ˈsecantly advse•cant (ˈsi kænt, -kənt)
n. 1. an intersecting line, esp. one intersecting a curve at two or more points. 2. (in a right triangle) the ratio of the hypotenuse to the side adjacent to a given angle; the reciprocal of its cosine. Abbr.: sec [1585–95; < Latin secant-, s. of secāns, present participle of secāre to cut; see -ant] se′cant•ly, adv. se·cant (sē′kănt′)1. A straight line or ray that intersects a curve, especially a circle, at two or more points.2. The ratio of the length of the hypotenuse in a right triangle to the side adjacent to an acute angle; the inverse of the cosine.Thesaurus| Noun | 1. |  secant - a straight line that intersects a curve at two or more pointsstraight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line" | | 2. | secant - ratio of the hypotenuse to the adjacent side of a right-angled triangleseccircular function, trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |
Translationssecant
secant, in mathematics. 1 In geometry, a secant is a straight line cutting a curve or surface. If it intersects the curve in two different points, as in the secant of a circlecircle,
closed plane curve consisting of all points at a given distance from some fixed point, called the center. A circle is a conic section cut by a plane perpendicular to the axis of the cone.
..... Click the link for more information. , the segment of the secant between the points is called a chord. The limiting position of a secant, if such a limit exists, is called the tangenttangent,
in mathematics. 1 In geometry, the tangent to a circle or sphere is a straight line that intersects the circle or sphere in one and only one point. For other curves and surfaces the tangent line at a given point P
..... Click the link for more information. to the curve or surface at that point. 2 A trigonometric function. See trigonometrytrigonometry
[Gr.,=measurement of triangles], a specialized area of geometry concerned with the properties of and relations among the parts of a triangle. Spherical trigonometry is concerned with the study of triangles on the surface of a sphere rather than in the plane; it is
..... Click the link for more information. .Secant a trigonometric function. In a right triangle, the secant of an acute angle is defined as the ratio of the hypotenuse to the leg adjacent to the angle. The secant is denoted by sec. secant[′sē‚kant] (mathematics) The function given by the reciprocal of the cosine function. Abreviated sec. The secant of an angle A is 1/cos A. A line of unlimited length that intersects a given curve. secant1. (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the adjacent side; the reciprocal of cosine 2. a line that intersects a curve MedicalSeesecFinancialSeeSECSECANT
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| SECANT➣Separation and Control of Aircraft Using Nonsynchronous Techniques |
secant
Related to secant: cosecantSynonyms for secantnoun a straight line that intersects a curve at two or more pointsRelated Wordsnoun ratio of the hypotenuse to the adjacent side of a right-angled triangleSynonymsRelated Words- circular function
- trigonometric function
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