Analytic geometry, for technical schools and colleges (1897)
Lambert, Preston Albert, 1862-1925 · New York, Macmillan · leaf 191
rojects a point of the line in space on the XZ-plane.Hence the equation of theprojection of the line inspace on the XZ-plane wheninterpreted in space repre-sents the projecting surface.The projection of the line inspace on the XZ-plane deter-mines one surface on which/Y the line in space must lie.… … POLXT, LINE, AND PLANE IN SPACE 177 YZ therefore determine the line in space and are called theequations of the line in space. By eliminating z from tlieequations of the projections of the line on the planes XZ andYZ, the equation of the projection of the line on the XF-plane is found. Art. 90. —…
Geometry, Analytic
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