An elementary treatise on coordinate geometry of three dimensions (1912)
Bell, Robert J. T. (Robert John Tainsh), 1877-1963 · London : Macmillan and co., limited · leaf 25
de and sign. A con-struction for P would be: cut off from OX the segment OA,draw AN, through A, equivalent to the segment OB, anddraw NP, through N, equivalent to the segment OC. OA,OB, OC are known when their measures are known, andthese measures are called the Cartesian coordinates of Pwith… … parallel to YOZ, is called the ^-coordinate of P; the measuresof OB and OC are the y- and z-coordinates, and the symbolP, (x, y, z) is used to denote, the point P whose coordinatesare x, y, z. The coordinate planes divide space into eightparts called octants, and the signs of the coordinates of…
Geometry, Analytic
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