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angles axes B.Sc begin called centre circle coaxaloid system College common conic conjugate connected considered constant contain coordinates corresponding cosC cosh definition Demonstration denote determinant direction Edinburgh envelope equal equation expression figure fluxions four fraction function geometrical George Gergonne point given gives Glasgow greater Hence hyperbola II-points imaginary infinite infinity integral intersect isotomic conjugate joining less limit magnitudes Mathematics means measure meet method Newton noted obtain obvious opposite pairs parallel passes perpendicular Philalethes planes positive potential problem Proceedings Professor proof proportion proved quantities ratio rectangle referred respectively Robins S-point School sides similar Similarly sinh Society solutions space square suppose tangents theorem third touches triangle University values vanishes variable vertices write zeros
Side 24 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Side 13 - These are said not to be moments, but quantities generated from moments, which last are only the nascent principles of finite quantities. It is said that the minutest errors are not to be neglected in mathematics : that the fluxions are celerities, not proportional to the finite increments, though ever so small ; but only to the moments or nascent increments, whereof the proportion alone, and not the magnitude, is considered.
Side 14 - If with a view to demonstrate any proposition, a certain point is supposed, by virtue of which certain other points are attained; and such supposed point be...
Side 5 - To express that the ratio of A to B is equal to the ratio of C to D, we write the quantities thus : A : B : : C : D; and read, A is to B as C to D.
Side 15 - And as one of the antecedents is to its consequent, so is the sum of the antecedents to the sum of the consequents; [V.
Side 21 - If four straight lines be proportionals, the rectangle contained by the extremes is equal to the rectangle contained by the means.
Side 17 - If you should say, it is a mere limit ; be pleased to reconcile this with what we find in the first case of the second lemma in the second book of his Principles : Ubi de lateribus A et B deerant momentorum dimidia, $c. — where the moments are supposed to be divided.
Side 24 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides.