Barrow, Isaac, 1630-1677, Child, J. M. (James Mark), tr · Chicago, London : The Open court publishing company · leaf 138
ed to this axis, AZ, PG, DE, continually * Only proved for a special case in Lect. VI, § 17 ; but the method canbe generalized without difficulty. LECTURE X 117 increase from the initial ordinate AZ; also let AIF be a linesuch that, if any straight line EDF is drawn perpendicularto AD, cutting the… … EFig. 109. For, if any point I is taken in the line AIF (first on theside of F towards A), and if through it IG is drawn parallelto AZ, and KL is parallel to AD^ cutting the given lines asshown in the figure; then LF : LK = DF : DT = DE : R, orR . LF = LK . DE. But, from the stated nature of the…
Geometry
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