ATAN
Yields the Arc Tangent of a REAL value.
Arguments | |||
|---|---|---|---|
IN | IN | REAL | Any real value |
ATAN | Q | REAL | Arc-tangent of the input value (in set [-PI/2 .. +PI/2]) = 0.0 for invalid input |
Example
(* FBD Program using "TAN" and "ATAN" Function *)
(* ST Equivalence: *)
tangent := TAN (angle); result := ATAN (tangent); (* result is equal to angle*)
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