ATan (open)
Returns the arctangent of a value.
Syntax
LOADLIB "wh::float.whlib";
FLOAT FUNCTION ATan(FLOAT value)
Parameters
FLOAT value
The FLOAT value from which to determine the arctangent
Return value
FLOAT
The arctangent of @italic value in radians
Examples
// The FLOAT value will be 0.7853...
FLOAT f := ATan(1.0);