Using pneumatic input signals as operands, computing relays perform ______ functions.

Computing relays that utilize pneumatic input signals as operands primarily perform mathematical functions. In this context, mathematical functions involve operations such as addition, subtraction, multiplication, and division applied to the pneumatic signals being processed.

Pneumatic inputs can vary in pressure, which corresponds to different values that the computing relay can manipulate mathematically. By interpreting the pressure signals as numerical values, the relay can perform calculations and thus control processes based on the results of those computations. This is crucial in various automation applications where precision and accurate data manipulation are required.

While logical, sequential, and analog functions are important in automation systems, the core functionality of computing relays in this scenario revolves around their ability to handle and compute mathematical data derived from pneumatic signals.