Command Reference : Operator and Function Reference : Trigonometric Functions
  
Trigonometric Functions
When applied to a series, all of the trigonometric functions operate on every observation in the current sample and return a value for every observation. Where relevant, the input and results should/will be expressed in radians. All results are real valued—complex values will return NAs.
 
Function
Name
Examples/Description
@acos(x)
arc cosine (real results in radians)
@asin(x)
arc sine (real results in radians)
@atan(x)
arc tangent (results in radians)
@cos(x)
cosine (argument in radians)
@sin(x)
sine (argument in radians)
@tan(x)
tangent (argument in radians)