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secant    
a. 割的,切的,交叉的
n. 割線,正切

割的,切的,交叉的割線,正切

secant
正割; 割線

secant
正割 割線

secant
n 1: a straight line that intersects a curve at two or more
points
2: ratio of the hypotenuse to the adjacent side of a right-
angled triangle [synonym: {secant}, {sec}]

Secant \Se"cant\ (s[=e]"k[a^]nt), a. [L. secans, -antis, p. pr.
of secare to cut. See {Section}.]
Cutting; dividing into two parts; as, a secant line.
[1913 Webster]


Secant \Secant\, n. [Cf. F. s['e]cante. See {Secant}, a.]
1. (Geom.) A line that cuts another; especially, a straight
line cutting a curve in two or more points.
[1913 Webster]

2. (Trig.) A right line drawn from the center of a circle
through one end of a circular arc, and terminated by a
tangent drawn from the other end; the number expressing
the ratio of this line to the radius of the circle. See
{Trigonometrical function}, under {Function}.
[1913 Webster]

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英文字典中文字典相關資料:
  • Secant function (sec) - Trigonometry - Math Open Reference
    In a right triangle, the secant of an angle is the length of the hypotenuse divided by the length of the adjacent side In a formula, it is abbreviated to just 'sec'
  • Tangent and Secant Lines - Math is Fun
    A secant line intersects two or more points on a curve (From the Latin secare "cut or sever") They are lines, so extend in both directions infinitely Circle On a circle they look like this: Theorems There are three theorems of interest here: Intersecting Secants Theorem Intersecting Chords Theorem Angle of Intersecting Secants Theorem
  • Secant - Math. net
    A secant is a line that intersects a curve at a minimum of two different points The secant line above cuts (intersects) the curve at three distinct points In Geometry, secant lines are often used in the context of circles The secant line below, in red, intersects the circle with center O, twice
  • SECANT Definition Meaning - Merriam-Webster
    : a straight line cutting a curve at two or more points : a straight line drawn from the center of a circle through one end of a circular arc to a tangent drawn from the other end of the arc
  • Secant in Trigonometry Explained Simply - Andrea Minini
    Geometrically, the secant (OB) is the point where the line (r), which is tangent at point P on the unit circle, intersects the x-axis The secant can also be seen as the line segment OC that starts at the origin O, passes through point P, and intersects the tangent at point C





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