Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 161
aph, whichconsists of four rods jointed together in such a manner as toform a parallelogram ABOC with sides of constant length,but whose angles may be changed with perfect freedom. Onthe rods AB and AC fix two points P and Pj in a straightline with 0. If the point 0 is fixed in the plane, and… … qpi OP P,C CA m CA a constant which may bedenoted by m. Taking 0as origin of a system ofrectangular coordinates,if Pis (a-, 2/), Pi is (— mx, — my). If the point P is fixed inthe plane and taken as origin of a system of rectangular coordi-nates, if the point 0 is (x, y), the point Pj is {mx, my).…
Geometry, Analytic
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