An introduction to projective geometry and its applications; an analytic and synthetic treatment (1905)
Emch, Arnold, b. 1871 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 266
1 How to Draw a Straight Line. 2 Transactions, loc. cit. APPLICATIONS IN MECHANICS. 253 § 66. Linear Transformation. 1. By a combination of rotator and translator it is possibleto realize a general motion in the plane. According to § 61 … Fig. i10. the next group in making up a linear transformation is the dila-tion x =axf. ?-&■ The linkage for this transformation is shown in Fig. in.1Let OA=x/. By a Schemer pantograph (which we choose forthe sake of simplicity), in which OB/OA = a and consisting ofthe links OC, CB, DA and AE, a…
Geometry, Projective · Geometry, Analytic
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