The Messenger of Mathematics, Volume 9Macmillan and Company, 1880 - Mathematics |
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angle axis B₁ C₁ centre chord circle coefficients conic constant corresponding cosh 2n+1 curve cylinder cylindroid denote determinant differential equation directrix dx dy dz dx² ellipse equal expression formula function geometrical given harmonic Hence homogeneous function integral J. W. L. GLAISHER latus rectum lemma modulus motion normal obtained osculating plane P₁ parabola parallel perpendicular positive projectile quadric radius ratio result roots rotation sinh 2n+1 solid harmonic straight line surface tangent plane theorem triangle of reference v₁ values vanishes velocity y₁ zero δμ λ λ πθ аф