Word:

Trigonometrical function

a quantity whose relation to the variable is the same as that of a certain straight line drawn in a circle whose radius is unity, to the length of a corresponding are of the circle. Let AB be an arc in a circle, whose radius OA is unity let AC be a quadrant, and let OC, DB, and AF be drawnpependicular to OA, and EB and CG parallel to OA, and let OB be produced to G and F. E Then BD is the sine of the arc AB; OD or EB is the cosine, AF is the tangent, CG is the cotangent, OF is the secant OG is the cosecant, AD is the versed sine, and CE is the coversed sine of the are AB. If the length of AB be represented by x (OA being unity) then the lengths of Functions. these lines (OA being unity) are the trigonometrical functions of x, and are written sin x, cos x, tan x (or tang x), cot x, sec x, cosec x, versin x, coversin x. These quantities are also considered as functions of the angle BOA.
See under Function.

See also: Function Trigonometric

Browse
Trigness
Trigon
Trigonal
Trigonal trisoctahedron
Trigone
Trigonella
Trigonella foenumgraecum
Trigonella ornithopodioides
Trigonia
Trigonid
Trigonocerous
Trigonodont
Trigonometric
trigonometric function
Trigonometrical coordinates
Trigonometrical curve
-- Trigonometrical function --
Trigonometrical lines
Trigonometrical survey
trigonometrician
Trigonometry
Trigonous
trigonum cerebrale
Trigram
Trigrammatic
Trigrammic
Trigraph
Trigyn
Trigynia
Trigynian
Trihedral
Trihedron
Trihoral
Index: # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

About this site and copyright information - Online Dictionary Home