Sample

ProfessionalEngineering# Trigonometric functions

##### This online calculator computes the values of elementary trigonometric functions, such as sin, cos, tg, ctg, sec, cosec for angle, which can be entered in degrees, radians, or grads.

Trigonometric functions are the set of elementary functions which relates the angles of triangle to the lengths of the sides of the triangle. They're also called circular functions, see picture.

The trigonometric functions are:

To compute these functions just enter angle value in

Well, some school-level theory.

All other functions are expressed via sine and cosine as follows:

Tangent:

(the ratio of the length of the opposite side to the length of the adjacent side)

Cotangent:

(the ratio of the length of the adjacent side to the length of the opposite side)

Secant:

(the ratio of the length of the hypotenuse to the length of the adjacent side)

Cosecant:

(the ratio of the length of the hypotenuse to the length of the opposite side)

Other trigonometric functions:

Versed sine:

Coversed sine:

Haversed sine:

Exsecant:

Excosecant:

## Comments