arc trigonometric function
51Lunar distance (navigation) — For the history of the lunar distance method, see History of longitude. Finding Greenwich time while at sea using a lunar distance. The Lunar Distance is the angle between the Moon and a star (or the Sun). The altitudes of the two bodies are used …
52Tractrix — (from the Latin verb trahere pull, drag ), or tractrice, is the curve along which a small object moves, under the influence of friction, when pulled on a horizontal plane by a piece of thread and a puller that moves at a right angle to the… …
53Fresnel integral — S(x) and C(x) The maximum of C(x) is about 0.977451424. If πt²/2 were used instead of t², then the image would be scaled vertically and horizontally (see below). Fresnel integrals, S(x) and C(x), are two transcendental functions named aft …
54sine — I. /saɪn / (say suyn) noun Mathematics 1. a trigonometric function defined for an acute angle in a right angled triangle as the ratio of the side opposite the angle to the hypotenuse, and defined for angles of any size as the ordinate of a point… …
55arccosine — noun the inverse function of the cosine; the angle that has a cosine equal to a given number • Syn: ↑arc cosine, ↑arccos, ↑inverse cosine • Hypernyms: ↑trigonometric function, ↑circular function …
56arccotangent — noun the inverse function of the cotangent; the angle that has a cotangent equal to a given number • Syn: ↑arc cotangent, ↑inverse cotangent • Hypernyms: ↑trigonometric function, ↑circular function …
57arcsec — noun the inverse function of the secant; the angle that has a secant equal to a given number • Syn: ↑arc secant, ↑arcsecant, ↑inverse secant • Hypernyms: ↑trigonometric function, ↑circular function …
58arcsecant — noun the inverse function of the secant; the angle that has a secant equal to a given number • Syn: ↑arc secant, ↑arcsec, ↑inverse secant • Hypernyms: ↑trigonometric function, ↑circular function …
59arcsine — noun the inverse function of the sine; the angle that has a sine equal to a given number • Syn: ↑arc sine, ↑arcsin, ↑inverse sine • Hypernyms: ↑trigonometric function, ↑circular function …
60arctangent — noun the inverse function of the tangent; the angle that has a tangent equal to a given number • Syn: ↑arc tangent, ↑arctan, ↑inverse tangent • Hypernyms: ↑trigonometric function, ↑circular function …
