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The size of a circuit is the number of gates it contains and its depth is the maximal length of a path from an input gate to the output gate. There are two major notions of circuit complexity. [1] The circuit-size complexity of a Boolean function is the minimal size of any circuit computing .
Parity only depends on the number of ones and is therefore a symmetric Boolean function.. The n-variable parity function and its negation are the only Boolean functions for which all disjunctive normal forms have the maximal number of 2 n − 1 monomials of length n and all conjunctive normal forms have the maximal number of 2 n − 1 clauses of length n.
A simple sorting network consisting of four wires and five connectors. In computer science, comparator networks are abstract devices built up of a fixed number of "wires", carrying values, and comparator modules that connect pairs of wires, swapping the values on the wires if they are not in a desired order.
If the circuit C outputs A∧B for circuits A and B, join the branching programs that γ-compute A, δ-compute B, γ −1-compute A, and δ −1-compute B for a choice of 5-cycles γ and δ such that their commutator ε=γδγ −1 δ −1 is also a 5-cycle. (The existence of such elements was established in Lemma 2.)
Circuit diagram for threshold detector with hysteresis. The threshold detector with hysteresis consists of an operational amplifier and a series of resistors that provide hysteresis. [1]: 5 [2]: 7 [3] Like other detectors, this device functions as a voltage switch, but with an important difference. The state of the detector output is not ...
The circuit on the left is satisfiable but the circuit on the right is not. In theoretical computer science, the circuit satisfiability problem (also known as CIRCUIT-SAT, CircuitSAT, CSAT, etc.) is the decision problem of determining whether a given Boolean circuit has an assignment of its inputs that makes the output true. [1]
[11] In 1985, psychologist Howard Gardner called his thesis "possibly the most important, and also the most famous, master's thesis of the century". [12] The paper won the 1939 Alfred Noble Prize . A version of the paper was published in the 1938 issue of the Transactions of the American Institute of Electrical Engineers .
AC 0 is a complexity class used in circuit complexity. It is the smallest class in the AC hierarchy, and consists of all families of circuits of depth O(1) and polynomial size, with unlimited-fanin AND gates and OR gates (we allow NOT gates only at the inputs). [1] It thus contains NC 0, which has only bounded-fanin AND and OR gates. [1]