| 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 | ![]() | .~.~.~ Piece-wise linear synthesis {2} |
| 847 | DF | .~.~.~.~> Interpolation/extrapolation |
| 848 | DF | .~.~.~.~> Diode breakpoint |