Proceedings of the Edinburgh Mathematical Society, Volume 5

angle axis base body centre cercle chord circumscribed conique constant construction contain correspond curve d'une describe determined deux diameter difference direction distance draw drawn droite ellipse equal equation equiangular equilateral Euclid expression figure fixed given circle given point given straight line gives greater half Hence infinite inscribed inscribed and circumscribed Join l'angle l'axe less mean meeting n-gon Note number of sides origin parallel perpendicular plane polaire polygon position possible problem produced proportional PROPOSITION propriété prove quadrilateral question radical radius rapport reference regular relation respect result right-angled sides similar solution space centrode square Suppose Take taken tangent Tartaglia's third triangle valeurs vanishes varie vortex vortices δι