Brodetsky, Selig, 1888-1954 · London, G. Bell and Sons, Ltd. · leaf 21
INTRODUCTION 3 a straight line is drawn joining the graduation a on scale a to the graduation h on scale h, the line cuts the X curv^e at the graduation x, where x is the desired … result. Thus., in Fig. 2. the line joining the point a on the scale a to the point h on the scale h cuts the curve a; at a point whose x coordinate (or abscissa) is a solution of the equation x^-i-ax+h^O. Sometimes the x curve and the a, h scales are three parallel lines. In Fig. 3 we have a…
Nomography (Mathematics)
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