## Trigonometric Function

Of function. May also be referred to as **circular function**.

Function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle.

This concept's ID is **@1~69349**

### Contains

- arc sine
The inverse function of the sine; the angle that has a sine equal to a given number.

- sin
Ratio of the length of the side opposite the given angle to the length of the hypotenuse of...

- arc cosine
The inverse function of the cosine; the angle that has a cosine equal to a given num...

- cos
Ratio of the adjacent side to the hypotenuse of a right-angled triangle.

- arc tangent
The inverse function of the tangent; the angle that has a tangent equal to a given ...

- tan
Ratio of the opposite to the adjacent side of a right-angled triangle.

- arc cotangent
The inverse function of the cotangent; the angle that has a cotangent equal to a given...

- cotangent
Ratio of the adjacent to the opposite side of a right-angled triangle.

- arc secant
The inverse function of the secant; the angle that has a secant equal to a given num...

- secant
Ratio of the hypotenuse to the adjacent side of a right-angled triangle.

- arc cosecant
The angle that has a cosecant equal to a given number.

- cosecant
Ratio of the hypotenuse to the opposite side of a right-angled triangle.