In a number of counter applications the problem is how to determine a certain mathematical function of the number of counting pulse N α received from one or other technical process. These mathematical functions can for instance be the square or a higher power of N α , the square root, the log2, the sin or the cos of N α .[l] The next value of the function must be available immediately after the next counting pulse is received. An increase of 1 in the number of counting pulses must yield an increase in the value of the generated function in such cases where the accuracy demands this. In many technical processes absolute accuracy is not required. In those cases the increase in the value of the generated function can depend on the increase of a number of N α pulses.
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