| FuzzyNumbers-package | Tools to Deal with Fuzzy Numbers | 
| *-method | Arithmetic Operations on Fuzzy Numbers | 
| +-method | Arithmetic Operations on Fuzzy Numbers | 
| --method | Arithmetic Operations on Fuzzy Numbers | 
| /-method | Arithmetic Operations on Fuzzy Numbers | 
| alphacut | Compute Alpha-Cuts | 
| alphacut-method | Compute Alpha-Cuts | 
| alphaInterval | Compute the Alpha-Interval of a Fuzzy Number | 
| alphaInterval-method | Compute the Alpha-Interval of a Fuzzy Number | 
| ambiguity | Calculate the Ambiguity of a Fuzzy Number | 
| ambiguity-method | Calculate the Ambiguity of a Fuzzy Number | 
| approxInvert | Approximate the Inverse of a Given Function | 
| arctan2 | Arc-tangent | 
| arctan2-method | Arc-tangent | 
| Arithmetic | Arithmetic Operations on Fuzzy Numbers | 
| as.character | Get Basic Information on a Fuzzy Number in a String | 
| as.character-method | Get Basic Information on a Fuzzy Number in a String | 
| as.FuzzyNumber | Converts an Object to a Fuzzy Number | 
| as.FuzzyNumber-method | Converts an Object to a Fuzzy Number | 
| as.PiecewiseLinearFuzzyNumber | Converts an Object to a Piecewise Linear Fuzzy Number | 
| as.PiecewiseLinearFuzzyNumber-method | Converts an Object to a Piecewise Linear Fuzzy Number | 
| as.PowerFuzzyNumber | Converts an Object to a Power Fuzzy Number | 
| as.PowerFuzzyNumber-method | Converts an Object to a Power Fuzzy Number | 
| as.TrapezoidalFuzzyNumber | Converts an Object to a Trapezoidal Fuzzy Number | 
| as.TrapezoidalFuzzyNumber-method | Converts an Object to a Trapezoidal Fuzzy Number | 
| convertAlpha | Convert a Given Upper/Lower Alpha-Cut Function to an Alpha-Cut Generating Function | 
| convertSide | Convert a Given Side Function to Side Generating Function | 
| core | Calculate the Core of a Fuzzy Number | 
| core-method | Calculate the Core of a Fuzzy Number | 
| DiscontinuousFuzzyNumber | Creates a Fuzzy Number with Possibly Discontinuous Side Functions or Alpha-Cut Bounds | 
| DiscontinuousFuzzyNumber-class | **EXPERIMENTAL** S4 Class Representing a Fuzzy Number with Discontinuous Side Functions or Alpha-Cut Bounds | 
| distance | Calculate the Distance Between Two Fuzzy Numbers | 
| distance-method | Calculate the Distance Between Two Fuzzy Numbers | 
| evaluate | Evaluate the Membership Function | 
| evaluate-method | Evaluate the Membership Function | 
| expectedInterval | Calculate the Expected Interval of a Fuzzy Number | 
| expectedInterval-method | Calculate the Expected Interval of a Fuzzy Number | 
| expectedValue | Calculate the Expected Value of a Fuzzy Number | 
| expectedValue-method | Calculate the Expected Value of a Fuzzy Number | 
| Extract | FuzzyNumber Slot Accessors | 
| fapply | Apply a Function on a Fuzzy Number | 
| fapply-method | Apply a Function on a Fuzzy Number | 
| FuzzyNumber | Creates a Fuzzy Number | 
| FuzzyNumber-class | S4 class Representing a Fuzzy Number | 
| integrateAlpha | Numerically Integrate Alpha-Cut Bounds | 
| integrateAlpha-method | Numerically Integrate Alpha-Cut Bounds | 
| integrate_discont_val | Integrate a Function with at Most Finite Number of Discontinuities *EXPERIMENTAL* | 
| maximum | Maximum of fuzzy nubmers | 
| maximum-method | Maximum of fuzzy nubmers | 
| minimum | Minimum of fuzzy nubmers | 
| minimum-method | Minimum of fuzzy nubmers | 
| necessityExceedance | Necessity of exceedance | 
| necessityExceedance-method | Necessity of exceedance | 
| necessityStrictExceedance | Necessity of strict exceedance | 
| necessityStrictExceedance-method | Necessity of strict exceedance | 
| necessityStrictUndervaluation | Necessity of strict undervaluation | 
| necessityStrictUndervaluation-method | Necessity of strict undervaluation | 
| necessityUndervaluation | Necessity of undervaluation | 
| necessityUndervaluation-method | Necessity of undervaluation | 
| piecewiseLinearApproximation | Piecewise Linear Approximation of a Fuzzy Number | 
| piecewiseLinearApproximation-method | Piecewise Linear Approximation of a Fuzzy Number | 
| PiecewiseLinearFuzzyNumber | Creates a Piecewise Linear Fuzzy Number | 
| PiecewiseLinearFuzzyNumber-class | S4 Class Representing a Piecewise Linear Fuzzy Number | 
| plot | Plot a Fuzzy Number | 
| plot-method | Plot a Fuzzy Number | 
| possibilityExceedance | Possibility of exceedance | 
| possibilityExceedance-method | Possibility of exceedance | 
| possibilityStrictExceedance | Possibility of strict exceedance | 
| possibilityStrictExceedance-method | Possibility of strict exceedance | 
| possibilityStrictUndervaluation | Possibility of strict undervaluation | 
| possibilityStrictUndervaluation-method | Possibility of strict undervaluation | 
| possibilityUndervaluation | Possibility of undervaluation | 
| possibilityUndervaluation-method | Possibility of undervaluation | 
| PowerFuzzyNumber | Creates a Fuzzy Number with Sides Given by Power Functions | 
| PowerFuzzyNumber-class | S4 class Representing a Fuzzy Number with Sides Given by Power Functions | 
| show | Print Basic Information on a Fuzzy Number | 
| show-method | Print Basic Information on a Fuzzy Number | 
| supp | Calculate the Support of a Fuzzy Number | 
| supp-method | Calculate the Support of a Fuzzy Number | 
| trapezoidalApproximation | Trapezoidal Approximation of a Fuzzy Number | 
| trapezoidalApproximation-method | Trapezoidal Approximation of a Fuzzy Number | 
| TrapezoidalFuzzyNumber | Creates a Trapezoidal Fuzzy Number | 
| TrapezoidalFuzzyNumber-class | S4 class Representing a Trapezoidal Fuzzy Number | 
| TriangularFuzzyNumber | Creates a Triangular Fuzzy Number | 
| value | Calculate the Value of a Fuzzy Number | 
| value-method | Calculate the Value of a Fuzzy Number | 
| weightedExpectedValue | Calculate the Weighted Expected Value of a Fuzzy Number | 
| weightedExpectedValue-method | Calculate the Weighted Expected Value of a Fuzzy Number | 
| width | Calculate the Width of a Fuzzy Number | 
| width-method | Calculate the Width of a Fuzzy Number | 
| [-method | FuzzyNumber Slot Accessors | 
| ^-method | Integer power of fuzzy number |