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too complicated to be written here. Click on the link to download a text file. |
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X(4), X(20), X(30), X(671), X(1294) X4-OAP points, see Table 53 |
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K809 is a circular cubic with singular focus X(113) on the nine point circle. It is the Droz-Farny cubic DF(X20) as in CL039. It contains the four X4-OAP points described in Table 53. See also K329, K443, Q044. These points also lie on the rectangular hyperbola (H) passing through X(3), X(20), X(185), X(2574), X(2575). |