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单位圆与τ

单位圆与τ
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2015-06-21 00:51
圆三角函数几何作图
这个范例演示了单位圆及其与τ（tau）的关系。核心数学概念包括圆的性质和τ的定义。通过使用Circle和Segment命令，可以构造单位圆并展示其特性。适合高中数学教学和学习。

GeoGebra 命令及参数

  1. Circle((0, 0), 1) → c
  2. Segment((0.8660254037844387, 0.49999999999999994), (-0.8660254037844388, -0.4999999999999997)) → a
  3. Segment((0.7071067811865476, 0.7071067811865475), (-0.7071067811865477, -0.7071067811865475)) → b
  4. Segment((0.5000000000000001, 0.8660254037844386), (-0.5000000000000004, -0.8660254037844385)) → d
  5. Segment((-0.8660254037844385, 0.5000000000000003), (0.8660254037844384, -0.5000000000000004)) → e
  6. Segment((-0.4999999999999998, 0.8660254037844387), (0.49999999999999933, -0.866025403784439)) → f
  7. Segment((-0.7071067811865475, 0.7071067811865476), (0.7071067811865474, -0.7071067811865477)) → g
  8. Segment((0, 1), (0, -1)) → h
  9. Segment((1, 0), (-1, 0)) → i