Brodetsky, Selig, 1888-1954 · London, G. Bell and Sons, Ltd. · leaf 90
72 WITH TWO PARALLEL SCALES and the equation becomes 1 6x2 c + -{x' 0, a) 3 aJ a 3 «/ a\ 3 a/ a\ 3 a/ a a\ and it is at once seen that the equation in x' does not contain the square term. This property of the cubic equation is particularly- valuable in the construction of a nomogram, because … a method exactly similar to that of § 40 can be applied to the equation x^-^ax-\-b=0. We plot y=—x^^;
Nomography (Mathematics)
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