virtual void dseff(std::vector< const VariableValue * > p, unsigned int qp, std::vector< Real > &result) const =0
derivative(s) of effective saturation as a function of porepressure(s) at given quadpoint of the elem...
virtual Real seff(std::vector< const VariableValue * > p, unsigned int qp) const =0
effective saturation as a function of porepressure(s) at given quadpoint of the element
virtual void d2seff(std::vector< const VariableValue * > p, unsigned int qp, std::vector< std::vector< Real >> &result) const =0
second derivative(s) of effective saturation as a function of porepressure(s) at given quadpoint of t...