Mathematics for engineering students, Analytical geometry and calculus (1907)
Keller, S. S. (Samuel Smith), 1867-1923, Knox, W. F., [from old catalog] joint author · New York : D. Van Nostrand company · leaf 22
with respect to the axesXXr and YYr and are joined, the result is an approxima-tion to the curve; it is only an approximation because thepoints are few and not close enough together. The result is shown in Fig. 7, using i inch as a unit for Analytical Geometry. J3 scale. The points are (o, + 3),… … Fig. 7. Clearly if more points are needed to trace the curveaccurately through them (as is the case here), it is neces-sary to take more values of x between —3 and +3, forexample: x= o y= ± V9 = ± 3. X = .2 y = ± V9 - .04 = ± V8.96 = ± 2.99. x = .4 y = ± V9 - .16= ± V8.84= ± 2.97. x = .6 y = ± v9 -…
Geometry, Analytic · Calculus
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