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最新推荐文章于 2023-01-21 09:32:50 发布

转载最新推荐文章于 2023-01-21 09:32:50 发布 · 85 阅读

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原文链接：http://www.cnblogs.com/mfys/p/7588695.html

Three circles $CaC_{a}Ca, CbC_{b}Cb, and CcC_{c}Cc, all with radius RRR and tangent to each other, are located in two-dimensional space as shown in Figure 111. A smaller circle C1C_{1}C1 with radius R1R_{1}R1 (R1<RR_{1}<RR1<R) is then inserted into the blank area bounded by CaC_{a}Ca, CbC_{b}Cb, and CcC_{c}Cc so that C1C_{1}C1 is tangent to the three outer circles, CaC_{a}Ca, CbC_{b}Cb, and CcC_{c}Cc. Now, we keep inserting a number of smaller and smaller circles Ck (2≤k≤N)C_{k}\ (2 \leq k \leq N)Ck (2≤$