Shaw's Civil architecture; being a complete theoretical and practical system of building, containing the fundamental principles of the art . I a!I(S^O®!iaS ®1? 3®[Lfl®g. Ola CNlnnlir. ::X PRACTICAL GEOMETRY. 51 2. Divide C D and C E each into any number ofequal parts, as four; through the points of division,1, 2, 3, draw lines to A. 3. Likewise divide D G and E F into the samenumber of equal parts, viz., four; from the divisionson D G and E F draw lines to B, and a curve beingdrawn tlirough the intersections at B a ft c E, wUl bethe hyperbola required. PROBLEM 11. Given the asjinptotes
Shaw's Civil architecture; being a complete theoretical and practical system of building, containing the fundamental principles of the art . I a!I(S^O®!iaS ®1? 3®[Lfl®g. Ola CNlnnlir. ::X PRACTICAL GEOMETRY. 51 2. Divide C D and C E each into any number ofequal parts, as four; through the points of division,1, 2, 3, draw lines to A. 3. Likewise divide D G and E F into the samenumber of equal parts, viz., four; from the divisionson D G and E F draw lines to B, and a curve beingdrawn tlirough the intersections at B a ft c E, wUl bethe hyperbola required. PROBLEM 11. Given the asjinptotes A B, C D, and a pointE, in the curve, to describe the hyperbola. 1. Through the given point E, di-aw any right lineE F, cutting the asymptotes in the points i and I. 2. Malce i F equal to I E; from F draw as manylines as you please, cutting the asymptotes in thepoints g-, h, i, k, &c., and G, H, I, K, &c. 3. Make G /, H /, K /, &c., respectively, equal tog F, h F, k F, &c., through the points/,/,/, describea curve, and it is the hyperbola required. In the same manner may the opposite hyperbolabe described. PROBLEM IIL Given the two conjugate diameters A B and C D,to f
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