Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 61
s of the hy-perbola. I and J are the ver-tices of the curves, and the line I J, the distance be-tween the vertices, is the transverse axis. This is thesame as I J in Fig. 10, and has been defined as that partof the axis which, if continued,would join an opposite cone. Theconjugate axis, L M, is a… … FiG. 10.
Mechanical drawing
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