Pi/zh CN
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Revision as of 07:58, 11 December 2013 by
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(Created page with "Pi是圆的周长与直径的比值。 Pi是大约3.14159265358979。 一个完整圆
弧度
是2*pi。 Pi为
Pascal
的一个
函数
,它返回圆...")
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Pi是圆的周长与直径的比值。 Pi是大约3.14159265358979。
一个完整圆
弧度
是2*pi。
Pi为
Pascal
的一个
函数
,它返回圆周率的值。
pi/4 近似于 arctan(1)。
参见
Pi
ArcTan
计算反正切
圆周率
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