Elements of analytical geometry and of the differential and integral calculus (1866)
Davies, Charles, 1798-1876 · New York, Barnes & Co. · leaf 54
inates of the new origin, andthe new co-ordinates of the same point. 1. The new origin may be placed in either of the fourangles of the primitive axes, by attributing proper signs toits co-ordinates, a and h. It is also to be observed, that BOOK I.] TRANSFORMATION OF CO-ORDINATES x and y have the… … 29. Let A be the commonorigin, AX^ AY^ the primitiveaxes, and AX!^ AY\ the newaxes; and let ns designate, asbefore, the co-ordinates of pointsreferred to the new axes, by xand 2/. Denote the angle which thenew axis of X makes with the primitive axis of X, by a,and the angle which Y makes with AX,…
Geometry, Analytic · Calculus
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