trigonometric function
function of an angle
secant
ratio of the hypotenuse of a triangle to the adjacent side of an angle
haversine
trigonometric function
chord function
function in trigonometry
chord function
function in trigonometry
sine
type of trigonometric function; ratio between the lengths of the opposite side and the hypotenuse in a right triangle
tangent
ratio of lengths of opposite side and the adjacent side of a right angled triangle; a trigonometric function
cotangent
ratio of the adjacent side of an angle in a right triangle to the angle's opposite side
coversine
trigonometric function; one minus the sine
exsecant
trigonometric function defined as secant minus one
rarely used trigonometric functions
disused variants of the six standard trigonometric functions
cosine
trigonometric function; ratio between the lengths of the adjacent side and the hypotenuse in a right triangle
versine
1 minus the cosine of an angle
cosecant
ratio of the hypotenuse of a triangle to the opposite side of an angle