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Arithmetic by Distance
The Addition Rule
6 other sections not shown
2's multiplied A-scale actual addition and subtraction adjust analog computer antilog arithmetic B-numbers base body bottom ruler bring C-1 C-1 right characteristic CIF-scale computations consider count cube root D-reading D-scale D(back)-reading D(back)-scale decimal point digit-combination distance of log divide divisor edge exact answer exponential numbers exponents flip the slide folded scales fractions inches indicator assembly instance inverse scales Isaac Asimov kilograms left end left)-scale leftward length loga logarithm table logarithmic scale long division look manipulate mantissa middle ruler move C-1 move the hairline multiplication and division neighboring the decimal number of zeros number system obtained order of magnitude ordinary ruler place C-1 place S-0 place the decimal place the hairline position primaries problem quotient reverse right end right)-scale rithms secondaries set of numbers shown in Figure SI-numbers simple simultaneous reading slide rule solve space square root subtract logarithms tertiary representing top ruler Univac zeros neighboring