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 156
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… … oc a2y = x3. x° a THE HARMONIC CURVE OR CURVE OF SINES. 271. This is the curve in which a musical stringvibrates when sounded. The ordinates are propor-tional to the sines of angles which are the same frac-tions of four right angles that the corresponding ab-scissas are of some given length. Let AB…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
