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 73
and OP, form a geometric series, the common ratebeing OPi : OP-2. … Fig. 41. If OP\ be the unit of length, the series consists ofthe natural powers of the common rate. 109. Representing the series by a, ar, ar2,....P*Pz = arVl + r*. PzPi=aWl +r These lines also form a geometric series with thecommon rate r. no. The terms can also be reversed, in which case the…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.