ACos

Description: Calculates the trigonometric arc cosine in radians.

Returns: Numeric

Usage: Script or Steady State.

Format: ACos(X)

Parameters: X { numeric } { required } { no default }

Any numeric expression in the range –1 to +1.

Comments: The returned angle is in radians. To convert an angle from radians to degrees, divide by π / 180 or (approximately) 0.0174533.

Example:

radAngle = ACos(0);

degAngle = radAngle / π / 180;

{ In the example shown above, the value of degAngle will be 90.}