CAD 我们用弧度时不要去定义Pi是多少,用Math.Pi - 润新知

CAD 我们用弧度时不要去定义Pi是多少,用Math.Pi

我们用弧度时不要去定义Pi是多少,用Math.Pi 要尽量求精确对于VBA中的Pi 要用 pi = 4 * Atn(1)
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原文地址：https://www.cnblogs.com/houlinbo/p/1555793.html

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