An analog computer solves equations by implementing a system characterized by the same equations as the ones to be solved. Composed of blocks implementing mathematical operations and programmed digitally, they function in synergy with a digital computer, resulting in a system known as a "hybrid computer." Differential equations, ordinary or stochastic, are simulated using analog electrical circuitry, creating a dynamical system which reproduces the solution of the equation to be solved. A dedicated circuit can be integrated into the analog system to produce continuous-time random noise, improving the accuracy of simulation results.
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