708 / | HD | ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING |
800 | DF | ELECTRICAL ANALOG CALCULATING COMPUTER {1} |
801 | DF | .~ Particular function performed {15} |
845 | DF | .~.~ Function generation {7} |
846 | DF | .~.~.~ Piece-wise linear synthesis {2} |
847 | .~.~.~.~ Interpolation/extrapolation |