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Analog computer forms—need to solve differential equations by Integration. How?

  • Mechanical integration-1940’ 1950’s. Ball disc integrators (CVT’s). Equations solved by mechanical connections of shafts. Solution was shaft positions vs time

  • Electronic integration 1950’s 1970’s. The invention of the operational high gain amplifier. Accuracy about 0.5% to 1%. Solution was Voltage vs Time

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