Barrow, Isaac, 1630-1677, Child, J. M. (James Mark), tr · Chicago, London : The Open court publishing company · leaf 229
R P/ N APPENDIX 209 (ii). Let N^^ be the ordinate for the given abscissa, ^X,^Z the given subtangents; let xx ^^ ^ curve such thatNx: R = N^:N^; find NQ, a fourth proportional toNZ- NX, NZ, NX; then Qx will touch the curve xx- [Seenote on page 112, rule (ii).] (iii). Let pp be a curve whose…
Geometry
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