- secant function
- мат.функция секанса, секансоида
English-Russian scientific dictionary. 2008.
secant function
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Secant line — A secant line of a curve is a line that (locally) intersects two points on the curve. The word secant comes from the Latin secare , for to cut .It can be used to approximate the tangent to a curve, at some point P . If the secant to a curve is… … Wikipedia
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 … The Collaborative International Dictionary of English
Secant — is a term in mathematics. It comes from the Latin secare (to cut). It can refer to: * a secant line, in geometry * the trigonometric function called secant * the secant method, a root finding algorithm in numerical analysismathdab … Wikipedia
Function — Func tion, n. [L. functio, fr. fungi to perform, execute, akin to Skr. bhuj to enjoy, have the use of: cf. F. fonction. Cf. {Defunct}.] 1. The act of executing or performing any duty, office, or calling; performance. In the function of his public … The Collaborative International Dictionary of English
Secant method — In numerical analysis, the secant method is a root finding algorithm that uses a succession of roots of secant lines to better approximate a root of a function f .The methodThe secant method is defined by the recurrence relation:x {n+1} = x n… … Wikipedia
secant — noun Etymology: New Latin secant , secans, from Latin, present participle of secare to cut more at saw Date: 1593 1. a straight line cutting a curve at two or more points 2. a straight line drawn from the center of a circle through one end of a… … New Collegiate Dictionary
Hyperbolic secant distribution — Probability distribution name =hyperbolic secant type =density pdf cdf parameters = none support =x in ( infty; +infty)! pdf =frac12 ; operatorname{sech}!left(frac{pi}{2},x ight)! cdf =frac{2}{pi} arctan!left [exp!left(frac{pi}{2},x ight) ight] ! … Wikipedia
Chapman function — A Chapman function describes the integration of atmospheric absorption along a slant path on a spherical earth, relative to the vertical case. It applies for any quantity with a concentration decreasing exponentially with increasing altitude. To… … Wikipedia
Algebraic function — Function Func tion, n. [L. functio, fr. fungi to perform, execute, akin to Skr. bhuj to enjoy, have the use of: cf. F. fonction. Cf. {Defunct}.] 1. The act of executing or performing any duty, office, or calling; performance. In the function of… … The Collaborative International Dictionary of English
Arbitrary function — Function Func tion, n. [L. functio, fr. fungi to perform, execute, akin to Skr. bhuj to enjoy, have the use of: cf. F. fonction. Cf. {Defunct}.] 1. The act of executing or performing any duty, office, or calling; performance. In the function of… … The Collaborative International Dictionary of English
Carnot's function — Function Func tion, n. [L. functio, fr. fungi to perform, execute, akin to Skr. bhuj to enjoy, have the use of: cf. F. fonction. Cf. {Defunct}.] 1. The act of executing or performing any duty, office, or calling; performance. In the function of… … The Collaborative International Dictionary of English
