You are about to take the following
                
Quiz
                
                Funktionsgraphen 2 Variablen
                
                    
                    
                        Description
                        Maxima-Command:
plot3d(-x^2+y^2,[x,-4,4],[y,-4,4],[grid,50,50],[gnuplot_pm3d,true],[legend,""]);
                    
                
                
                There will be 
14 questions to answer.
                They are presented in 
random order.