19 class Sigma :
public AbsFunction {
29 Sigma(const Sigma &right);
35 virtual
double operator ()(
double argument) const;
36 virtual
double operator ()(const Argument &
a) const;
55 std::vector<const AbsFunction *> _fcn;
#define FUNCTION_OBJECT_DEF(classname)
virtual bool hasAnalyticDerivative() const
virtual unsigned int dimensionality() const
Derivative partial(unsigned int) const
void accumulate(const AbsFunction &fcn)