| ApplyZFunction | Function to apply the Zadeh's principle | 
| approximationMehodsInside | A vector containing names of the built-in approximation methods. | 
| DpqDistance | Function to calculate D(p,q) distance. | 
| FuzzyApproximation | Function for approximation with the help of methods other than in FuzzyNumbers package | 
| PlotZFunction | Plot input and output for the Zadeh's principle |