Proceedings of the Edinburgh Mathematical Society

a₁ angles axes axis B.Sc b₁ C₁ centre of perspective centroid circumcentre circumcircle circumscribed coaxaloid system College common measure coordinates corresponding cosC cosh D.Sc denote determinant droites Edinburgh ellipse envelope equal equation figure fluxions fraction function geometrical George George Heriot's School George Watson's College Gergonne point given Glasgow Green's function harmonic Hence hyperbola II-points integral intersection isogonal isotomic conjugate K-transformations limit line at infinity line of centres LL.D locus magnitudes Mathematical Society meet method mid-point Newton nine-point circle obtained orthocentre pairs parabola parallel perpendicular Philalethes plane point of concurrence polar pole positive Professor of Mathematics proof proved quantities rectangle respect Robins S-point system School sides of ABC similar sinh solution spherical Steiner ellipse straight line symmedian point system of circles theorem triangle ABC trilinear coordinates vanishes variable vertices zeros