CPC Subgroup
G06G 7/36 of single equations of quadratic or higher degree (G06G7/22, G06G7/24 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 solving of equations > of single equations of quadratic or higher degree (G06G7/22, G06G7/24 take precedence)