The test case used in “Encyclopedis of Triangle Centers” to search for triangle centers.
\(a:b:c=6:9:13\).
\(I\) | Incenter | |
\(P_{\mathbf{4}}\) | First Ajima-Malfatti point | |
\(P^-_{\mathbf{4}}\) | First Malfatti-Rabinowitz point | |
\(P^+_{\mathbf{4}}\) | Gergonne point of the Malfatti triangle | |
\(Q_{\mathbf{4}}\) | Second Malfatti-Rabinowitz point | |
\(I^\prime_{\mathbf{4}}\) | Radical center of the Malfatti circles |
\(\triangle{A}{B}{C}\) | |
\(\triangle{A^\prime_{\mathbf{4}}}{B^\prime_{\mathbf{4}}}{C^\prime_{\mathbf{4}}}\) | |
\(\triangle{A^{\prime\prime}_{\mathbf{4}}}{B^{\prime\prime}_{\mathbf{4}}}{C^{\prime\prime}_{\mathbf{4}}}\) | |
\(\triangle{A^{\prime\prime\prime}_{\mathbf{4}}}{B^{\prime\prime\prime}_{\mathbf{4}}}{C^{\prime\prime\prime}_{\mathbf{4}}}\) | |
\(\triangle{A^*_{\mathbf{4}}}{B^*_{\mathbf{4}}}{C^*_{\mathbf{4}}}\) |