Trigonometric functions

Contents > Functions reference (alphabetical list) > Trigonometric functions

Trigonometric functions

Trigonometric functions are used to calculate degrees, angles, and other geometric data.

Note All trigonometric functions use radians as the unit of measure. Once you have a result, you can convert the radians into degrees using the Degrees function.

Click a function name for details.

This function

Returns

The arccosine, or inverse cosine, of a number.

The arcsine, or inverse sine, of a number.

The trigonometric arc tangent (inverse tangent) of radians.

Cos

The cosine of the specified angle.

Degrees, converted from the specified radians.

Pi

The value of the constant Pi, which is approximately 3.14159.

Radians, converted from the specified degrees.

Sin

The sine of the specified angle.

Tan

The tangent of the specified angle.

Contents > Functions reference (alphabetical list) > Trigonometric functions