Brodetsky, Selig, 1888-1954 · London, G. Bell and Sons, Ltd. · leaf 100
82 WITH TWO PARALLEL SCALES whose tangent is 2, and let the f unit be 5j5 times the rj unit. It will be found that not only is the part of the h scale between 0 and —5 equal and parallel to the part of the a scale between 0 and +5, but that these two lengths are opposite sides of a rectangle, so… … The nomogram thus made is more suitable for the given ranges of a, h than the general nomogram in Fig. 41. It has the additional great advantage that owing to the prescribed ranges the nomogram can be made bigger and therefore more accurate. 49. Automatic Method. Let us consider the case where a…
Nomography (Mathematics)
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