# Trigonometry

The Trigonometry functions offer trigonometric calculations for the values specified in them. The values are either numbers specified in the functions themselves, or are referenced through a spreadsheet cell.

Function | Description
ACos(Value) | Returns the arc cosine of Value in degrees. Note: -1 ≤ Value ≤ 1
ASin(Value) | Returns the arc sine of Value in degrees. Note: -1 ≤ Value ≤ 1
ATan(Value) | Returns the arc tangent of Value in degrees, ±90.
ATan2(DY,DX) | Returns the arc tangent of the vector (x, y) = (DY, DX) in degrees, ±180.
Cos(Angle) | Returns the cosine of Angle in degrees.
Degrees(Radians) | Returns an angle in degrees, given a value in radians.
Pi | Returns the value of pi ≈ 3.142.
Radians(Degrees) | Returns an angle in radians, given a value in degrees.
Sin(Angle) | Returns the sine of Angle in degrees.
Tan(Angle) | Returns the tangent of Angle in degrees.