Knot | x=-y; y=x*x*x-x-y; |

Insect |
x=y; y=y*y+x+y; |

Eshape |
x=-y; y=x+y+1/y; |

Square |
x=-0.999776*y; y=x; |

Triangle | x=-0.999776*y; y=x-y; |

Hexagon | x=-0.999776*y; y=x+y; |

Square/Circle | x=-0.999776*y; y=x+0.1*y; |

4 spirals | x=.004*x+y; y=(-1./y - y)/x; |

Pentagon | x=x*0.6 -y; y=0.1*x*y +x; |

Diagonal | x=.001*y+y; y=x; |

Circle of circles | x=y; y=-0.288/y +0.5*y - x; |

Chaotic oval | x = x/y -x; y = x*x - 0.24; |

Chaotic shell | x = x*y + 0.357057*x -y; y = x + y; |

Maintained by Giuseppe Zito : Giuseppe.Zito@cern.ch