Basic Characteristics RAPID

ATan2 Calculates the arc tangent2 value
Example
ATan2 (Arc Tangent2) is used to calculate the arc tangent2 value.
VAR num angle;
VAR num x_value;
VAR num y_value;
.
.
angle := ATan2(y_value, x_value);
Return value Data type: num
Arguments
Syntax
The arc tangent value, expressed in degrees, range [-180, 180].
The value will be equal to ATan(y/x), but in the range [-180, 180], since the function
uses the sign of both arguments to determine the quadrant of the return value.
ATan2 (Y X)
Y Data type: num
The numerator argument value.
X Data type: num
The denominator argument value.
ATan2’(’
[Y ’:=’] ’,’
[X ’:=’]
’)’
A function with a return value of the data type num.
RAPID Reference Manual 9-ATan2-1