This circuit provides high purity sine-wave output down to low frequencies with minimum circuit complexity.

这个电路以最简洁的结构实现了高纯净度正弦波输出，而且在较低的频率上也是如此。

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Because of the low circuit complexity and the advantage of easy to control, high efficiency, good reliability and so on, the design chooses the way of schematic input to finish it.

选择原理图输入方法，是考虑到本电路复杂度不高，而原理图输入可控性好，效率高，可靠性强且直观，可以熟悉较底层的结构。

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As the increase of circuit complexity, traditional simulation method has been unable to cover the total state space and the correctness of microprocessor arithmetic circuit cannot be ensured.

当电路复杂度达到一定规模后，传统的仿真验证方法已无法覆盖整个状态空间，从而无法保证像微处理器运算电路这类复杂设计的正确性。

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We can rather short-circuit this complexity though.

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"Doubling the complexity of the circuit often times turns it from being a difficult task to a practically impossible one, whereas for us to double the complexity it's really straightforward, " he told BBC News.

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