Construct the line segments joining (cos(t),0) with (0,sin(t)) as t ranges over [0,2p]. > x:=cos(t); ¡@ |

Construct the velocity vector field along a constant motion around a circle. |

Construct the line segments joining [cos(t),sin(t)] with [cos(2t),sin(2t)] as t ranges over [0,2p]. |

Construct the line segments joining [cos(t),sin(t)] with [cos(3t),sin(3t)] as t ranges over [0,2p]. |

Construct this graph associated with the logistic equation
x ' = ax(1-x) with a=3.7 > plot(m,scaling=constrained);
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Draw 20 concentric circles as thus: |

Construct the circles with center at (cos(t),sin(t)) passing through the point (1,0) with t ranging over [0,2p]. |

Construct the circles with center at (cos(t),sin(t)) and tangent to the y-axis with t ranging over [0,2p]. |

Construct the circles with center at (cos(t),sin(t)) and and
passing through (2cos(t)/3+cos(2t)/3,2sin(t)/3+sin(2t)/3) with t ranging over [0,2p]. |

Construct this figure: |

Construct this pattern: |

Construct the reflections of a light ray inside a square:
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