Barrow, Isaac, 1630-1677, Child, J. M. (James Mark), tr · Chicago, London : The Open court publishing company · leaf 135
arc AE * ; let TKF be a curve such that, ifany straight line DHK is drawn through D, cutting the curveTKF in K and the straight Hne TE in H, HK = HT; then letFS be drawn t to touch TKF at F; FS will touch the curveAIF also. 4. Moreover, if the straight line EF is given to bear anythe same ratio to… … Fig. 106. AB, a straight line given in position), cutting AP, AEG, AFI,in the points D, E, F respectively, DF is always equal to thearc AE; also let ET touch the curve AEG at E; take TEequal to the arc AE, and draw TR parallel to AB to cutAP in R; then, if RF is joined, RF touches the curve AFI. .…
Geometry
Internet Archive · Boston College Libraries · Public Domain Mark 1.0. Free to use for anything.
