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PCE
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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)