Opens a dialog box to define a logic gate.
        
        
            The argument is a real array of length 3 and defines the initial settings for the box
          controls as follows:
            
                
                    
                    
                    
                        
                            | 
                                
                                    Index
                                
                             | 
                            
                                
                                    Description
                                
                             | 
                        
                        
                            | 
                                0
                             | 
                            
                                Number of inputs
                             | 
                        
                        
                            | 
                                1
                             | 
                            
                                Propagation delay
                             | 
                        
                        
                            | 
                                2
                             | 
                            
                                Gate type:
                                
                             | 
                        
                    
                
            
         
        
            Arguments
        
        
            
                
                
                
                
                
                
                    
                        | 
                            
                                Number
                            
                         | 
                        
                            
                                Type
                            
                         | 
                        
                            
                                Compulsory
                            
                         | 
                        
                            
                                Default
                            
                         | 
                        
                            
                                Description
                            
                         | 
                    
                    
                        | 
                            1
                         | 
                        
                            real array
                         | 
                        
                            Yes
                         | 
                        
                         | 
                        
                            initial settings
                         | 
                    
                
            
        
        
            Returns
        
        
            Return type: real array
        
        
            The function returns a real array of length 3 with the same format as the argument
            described above. If the user selects Cancel the function returns an empty vector.