Unit Circle Demonstration

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Click and move the point around the circle. Notice how the x and y coordinates match the cosine and sine values of the angle. Also take note that you see the same values again and again as you rotate around the circle.

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magic point 4
Pentagrams, the Golden Ratio & Art
Crickets Keep Me Up All Night
copy an angle
Pirámide

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菱形
立方（體）
矩陣
內切圓
多邊形

Unit Circle Demonstration

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