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 162
ways from the circum-ference of the circle. IN PAPER FOLDING 143 If the constant length is equal to the diameter ofthe circle, the curve is a cardioid. If it be greater than the diameter, the curve isaltogether outside the circle. If it be less than the diameter, a portion of thecurve lies inside… … The first sort of limacon is the inverse of an ellipse;and the second sort is the inverse of an hyperbola,with reference to a focus as a center. The loop is theinverse of the branch about the other focus. 278. The trisectrix is applied as follows:Let A OB be the given angle. Take OA, OB equalto the…
Geometry -- Study and teaching · Paper work
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
