plot1=parametric_plot3d((cos(t),sin(t),cos(2*t)),(t,pi/4,5*pi/4),color="#DC267F",thickness=2)+parametric_plot3d((cos(t),sin(t),cos(2*t)),(t,5*pi/4,9*pi/4),color="#FFB000",thickness=2)+parametric_plot3d((t,t,0),(t,-sqrt(2)/2,sqrt(2)/2),color="#648FFF",thickness=2)+arrow3d((-.1,-.1,0),(.1,.1,0),color="#648FFF")+arrow3d((cos(pi/2),sin(pi/2),cos(2*pi/2)),((cos(pi/2+0.2),sin(pi/2+0.2),cos(2*(pi/2+0.2)))),color="#DC267F")+arrow3d((cos(3*pi/2),sin(3*pi/2),cos(2*3*pi/2)),((cos(3*pi/2+0.2),sin(3*pi/2+0.2),cos(2*(3*pi/2+0.2)))),color="#FFB000")

    
    
    Evaluate
    

        

            
                Language:
                
                    Sage
                    Gap
                    GP
                    HTML
                    Macaulay2
                    Maxima
                    Octave
                    Python
                    R
                    Singular
                
            
        
    
    




    

    

        

        Messages