vendredi 31 août 2012

Volume of the ball

                                                     
                                                         Click on the picture to launch
                                                            Download ggb file : here

Balloon beach

                                                
                                                Click on the picture to launch
                                       Download gbb file : here

Hemispheres

                                                       
                                                       Click on the picture to launch
                                                    Download ggb file : here

Stereographic coordinates

                                               
                                                Click on the picture to launch
                                           Download ggb file : here

Spherical sinusoides

                                               
                                             Click on the picture to laucnh
                                              Download ggb file : here

Spherical coordinates

                                                        
                                                          Click on the picture to launch
                                                        Downlooad ggb file : here

Animated sphere

                                                          
                                                          Click on the picture to launch
                                                      Download ggb file : here

"Petanque" ball

                                                 
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                                                Download ggb file : here

Spherical enveloppes

                                             
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                                         Download ggb file : here

LOXODROMIE

                                                   
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                                                     Download the ggb file : here

mercredi 29 août 2012

The magic of symmetries

                                                       
                                                   Click on the picture to launch
                                                  Click  on this link  to download:   here