13 class ATan :
public AbsFunction {
26 ATan(const ATan &right);
29 virtual
double operator ()(
double argument) const;
42 const ATan & operator=(
const ATan &right);
Derivative partial(unsigned int) const
virtual double operator()(double argument) const
#define FUNCTION_OBJECT_DEF(classname)
virtual bool hasAnalyticDerivative() const