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例子
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三角形开始
1;
0, 3;
0, -3, 3;
0, 3, -3, 3;
0, 0, 0, -3, 3;
0, -3, 3, 0, -3, 3;
0, 0, 0, 0, 0, -3, 3;
0, 3, -3, 3, 0, 0, -3, 3;
0, 0, 0, 0, 0, 0, 0, -3, 3;
0, 0, 0, -3, 3, 0, 0, 0, -3, 3;
0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3;
0, -3, 3, 0, -3, 3, 0, 0, 0, 0, -3, 3;
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -3, 3;
三角形的逆
1;
0, 1/3;
0, 1/3, 1/3;
0, 0, 1/3, 1/3;
0, 0, 1/3, 1/3, 1/3;
0, 0, 0, 1/3, 1/3, 1/3;
0, 0, 0, 1/3, 1/3, 1/3, 1/3;
0, 0, 0, 0, 1/3, 1/3, 1/3, 1/3;
0, 0, 0, 0, 1/3, 1/3, 1/3, 1/3, 1/3;
0, 0, 0, 0, 0, 1/3, 1/3, 1/3, 1/3, 1/3;
0, 0, 0, 0, 0, 1/3, 1/3, 1/3, 1/3, 1/3, 1/3;
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