Veblen, Oswald, 1880-1960, Young, John Wesley, 1879-1932 · Boston, New York [etc.] Ginn and Company · leaf 185
0= Ox= Oy Fig. 7i 170 COORDINATE SYSTEMS [Chap, vn the point oo in the case of the analytic treatment of the points of aline (§ 58). The two numbers just described, determining the pointP, are called the nonhomogeneous coordinates of P with reference to … Fig. 79 the two scales on the so- and the ?/-axes. The point P is then repre-sented analytically by the symbol (a, b). The number a is called thex-coordinate or the abscissa of the point, and is always written firstin the symbol representing the point; the number b is called they-coordinate or the…
Geometry, Projective
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