'Curve of sines' definitions:
Definition of 'Curve of sines'
From: GCIDE
- Sine \Sine\, n. [LL. sinus a sine, L. sinus bosom, used in translating the Ar. jaib, properly, bosom, but probably read by mistake (the consonants being the same) for an original j[imac]ba sine, from Skr. j[imac]va bowstring, chord of an arc, sine.] (Trig.) (a) The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity. (b) The perpendicular itself. See Sine of angle, below. [1913 Webster]
- Artificial sines, logarithms of the natural sines, or logarithmic sines.
- Curve of sines. See Sinusoid.
- Natural sines, the decimals expressing the values of the sines, the radius being unity.
- Sine of an angle, in a circle whose radius is unity, the sine of the arc that measures the angle; in a right-angled triangle, the side opposite the given angle divided by the hypotenuse. See Trigonometrical function, under Function.
- Versed sine, that part of the diameter between the sine and the arc. [1913 Webster]
Definition of 'curve of sines'
From: GCIDE
- Sinusoid \Si"nus*oid\, n. [Sinus + -oid.] (Geom.) The curve whose ordinates are proportional to the sines of the abscissas, the equation of the curve being y = a sin x. It is also called the curve of sines. [1913 Webster]