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Circuit forms efficient cosine calculator - 25-Oct-01 Issue of EDN
The circuit in Figure 1 converts a ±10V analog voltage representing an angle
between èMIN and èMAX and emits a voltage equal to 10 cosè. This
circuit can have an accuracy of better than 1% over ±120° or better than
0.2% over ±90°. These figures represent an order-of-magnitude improvement
over a Taylor-series estimate for the same range and for....[Design Idea by
Matt Kornblum, Bradenton, FL]
