125 This is identically satisfied, for the confocal x as well as for the confocals y and z, if t2 = 0, St(fc = 0, SAlAp2Ap=-l; (iv.) ... and that the squares of their tensors are (z-x)(x-y) (x-y)(y-z) (y-z)(z-x) m(x) m(y) w(z) where m(x) = m + ma#39;x + maquot;x2 + x3, andanbsp;...

Title | : | A Manual of Quaternions |

Author | : | Charles Jasper Joly |

Publisher | : | - 1905 |

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