Brodetsky, Selig, 1888-1954 · London, G. Bell and Sons, Ltd. · leaf 57
ADDITION AND SUBTRACTION 39 … 24. Successive Subtraction. A little tliought ^Yill convince one that for any type of operation involving additions and subtractions, there are a number of different nomograms possible. Without claiming for the general rule to be given here the title of being necessarily the best under all condi-…
Nomography (Mathematics)
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