不朽算法 十四 (Fukyū Sanpō §14)
\(a=252\), \(b=375\), \(c=507\). \(a:b:c=84:125:169\).
\(I_{\mathbf{a}}\) | Incenter | |
\(P_{\mathbf{5a}}\) | First Ajima-Malfatti point | |
\(P^-_{\mathbf{5a}}\) | First Malfatti-Rabinowitz point | |
\(P^+_{\mathbf{5a}}\) | Gergonne point of the Malfatti triangle | |
\(Q_{\mathbf{5a}}\) | Second Malfatti-Rabinowitz point | |
\(I^\prime_{\mathbf{5a}}\) | Radical center of the Malfatti circles |
\(\triangle{A}{B}{C}\) | |
\(\triangle{A^\prime_{\mathbf{5a}}}{B^\prime_{\mathbf{5a}}}{C^\prime_{\mathbf{5a}}}\) | |
\(\triangle{A^{\prime\prime}_{\mathbf{5a}}}{B^{\prime\prime}_{\mathbf{5a}}}{C^{\prime\prime}_{\mathbf{5a}}}\) | |
\(\triangle{A^{\prime\prime\prime}_{\mathbf{5a}}}{B^{\prime\prime\prime}_{\mathbf{5a}}}{C^{\prime\prime\prime}_{\mathbf{5a}}}\) | |
\(\triangle{A^*_{\mathbf{5a}}}{B^*_{\mathbf{5a}}}{C^*_{\mathbf{5a}}}\) |