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G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
G06G7/24—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating logarithmic or exponential functions, e.g. hyperbolic functions
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Theoretical Computer Science
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Software Systems
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Computer Hardware Design
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Networks Using Active Elements
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Tone Control, Compression And Expansion, Limiting Amplitude
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