Aldis, W. Steadman (William Steadman), 1839-1928 · Cambridge [Eng.] Deighton, Bell, and co.; London, G. Bell and sons · leaf 32
cular to two of the co-ordinateplanes, as those of xy and zx, 1 = 1, m = 0, n = 0, and theequation becomes x = p (3). These results are geometrically evident. 20. To find the equation of the plane in terms of its in-tercepts on the axes. This can be deduced from the equation (1) in the last… … the lines RN, NQ, and the given plane in RQ. Let P beany point in RQ and therefore any point in the plane. Thenby Euclid, xi. 16, the lines RN, NQ, QR are parallel to thelines CO, OB and BG, respectively. Draw PM parallel toRJSr to meet QN in if. Let 0]Sr=w, NM=y, MP = z, OA=a, OB = b, OG = c. Then…
