708 / | HD | ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING |
100 | DF | ELECTRICAL DIGITAL CALCULATING COMPUTER {10} |
200 | DF | .~ Particular function performed {26} |
490 | DF | .~.~ Arithmetical operation {27} |
620 | DF | .~.~.~ Multiplication {4} |
625 | DF | .~.~.~.~ Binary {2} |
626 | .~.~.~.~.~ Sum of cross products |