Proceedings of the Edinburgh Mathematical Society, Volume 5

angle equal axis bisect body centrode centre cut centre describe cercle Chapple chord circonférence circumscribed circle conjointes construction contain an angle corrélative curve d'une conique deux diameter distance donnée droite EDINBURGH MATHEMATICAL SOCIETY ellipse equation equiangular polygon equilateral polygon equilateral triangle Euclid exterior angle figure find the base foyer F GEORGE THOM given angle given aperture given circle given point given straight line Given the vertical greater harmonic conjugates Hence hypotenuse infinite number inscribed and circumscribed inscribed circle Join l'angle l'axe radical mean proportional menées n-gon nine-point circle number of sides odd number p-r-equation parabola parallel to oz pericyclic perimeter perpendicular plane point de rencontre polaires réciproques problem PROPOSITION propriété quadrilateral radius rapport right angles situé space centrode tangent Tartaglia's solution théorème triangle ABC valeurs vertical angle vortex vortices δε δσ