不朽算法 十四 (Fukyū Sanpō §14)
\(a=252\), \(b=375\), \(c=507\). \(a:b:c=84:125:169\).
\(I_{\mathbf{c}}\) | Incenter | |
\(P_{\mathbf{4c}}\) | First Ajima-Malfatti point | |
\(P^-_{\mathbf{4c}}\) | First Malfatti-Rabinowitz point | |
\(P^+_{\mathbf{4c}}\) | Gergonne point of the Malfatti triangle | |
\(Q_{\mathbf{4c}}\) | Second Malfatti-Rabinowitz point | |
\(I^\prime_{\mathbf{4c}}\) | Radical center of the Malfatti circles |
\(\triangle{A}{B}{C}\) | |
\(\triangle{A^\prime_{\mathbf{4c}}}{B^\prime_{\mathbf{4c}}}{C^\prime_{\mathbf{4c}}}\) | |
\(\triangle{A^{\prime\prime}_{\mathbf{4c}}}{B^{\prime\prime}_{\mathbf{4c}}}{C^{\prime\prime}_{\mathbf{4c}}}\) | |
\(\triangle{A^{\prime\prime\prime}_{\mathbf{4c}}}{B^{\prime\prime\prime}_{\mathbf{4c}}}{C^{\prime\prime\prime}_{\mathbf{4c}}}\) | |
\(\triangle{A^*_{\mathbf{4c}}}{B^*_{\mathbf{4c}}}{C^*_{\mathbf{4c}}}\) |