MacMahon, Percy Alexander, 1854-1929 · Cambridge [Eng.] The University press · leaf 94
r the contact system 1 to 1 , 2 to 3, 4 to 5 and a transformation according to fig. 96 b is shewn in fig. 96 c. The symmetry about the central horizontal line is to be remarked. Cl,2,2 B20.0.0 Vx \iX \ 1 / \ 1 / \l / 4X2 2X5 4X3 2X5 5X3 2X4 X3\ X3X / 4 \ / 4\ X2 \ /5\ \2X \2X \sX \5/ \5/ \4X 5X3… … Fig. 96. It is obvious that there is ample room for experiments with this interesting set.
Mathematical recreations
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