equations which put in evidence the double contact with the three critical conies respectively. ... and the equation A = 0 may therefore be written A = a 2w (x + y a z a w) + 4 (z- a xy) = 0, a form which shows that the conic z* a xy = 0 meets the line ... each of the four faces ; and then in each face, by lines drawn from the vertices of the face, project the point in that face upon the edges of the face ; the twoanbsp;...

Title | : | The Collected Mathematical Papers of Arthur Cayley ... |

Author | : | Arthur Cayley |

Publisher | : | - 1892 |

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