T. Sundara Row's geometric exercises in paper folding. Edited and rev. by Wooster Woodruff Beman and David Eugene Smith (1901)
Sundara Rao, Tandalam, 1853-, Beman, Wooster Woodruff, 1850-1922, Smith, David Eugene, 1860-1944 · Chicago Open Court Pub. Co · leaf 155
nd the conchoid. Then is /_ AOYone third of cp* THE WITCH. 269. If OQA (Fig. 79) be a semicircle and NQ anordinate of it, and NP be taken a fourth proportionalto ON, OA and QN, then the locus of P is the witch. Fold AM at right angles to OA.Fold through O, Q, and M.Complete the rectangle NAMP. PN:… … Fig. 79. This curve was proposed by a lady, Maria GaetanaAgnesi, Professor of Mathematics at Bologna. THE CUBICAL PARABOLA. 270. The equation to this curve is a2j = x3. Let OX and O Ybe the rectangular axes, OA=a,and OX=x. In the axis <?Ftake OB = x. Draw BA and draw AC at right angles to AB…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
