CPC Subgroup
G06G 7/20 for evaluating powers, roots, polynomes, mean square values or standard deviation (G06G7/122, G06G7/28 take precedence)
Full Title
Devices in which the computing operation is performed by varying electric or magnetic quantities > Arrangements for performing computing operations, e.g. amplifiers specially adapted therefor > for evaluating powers, roots, polynomes, mean square values or standard deviation (G06G7/122, G06G7/28 take precedence)