Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 174
ns of the squared paper are omitted in thefigure. If all possible intermediate pairs of values of x and yhad been calculated and plotted, the result would have beenthe curve shown in the figure. It will be found that the co-ordinates of all points onthe curve satisfy the given equation, Or are… … The curve does not extend below XX, since negativevalues of y lead to impossible values of x. The co-ordinateaxis O Y is an axis of symmetry of the curve. The upperbranches extend to infinity, x and y becoming indefinitelygreat together. The given equation y = 0.2.V2, or x2 = $y, merely ex-presses…
