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Pi/zh CN: what changed

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Title: Pi/zh CN

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1+Pi是圆的周长与直径的比值。 Pi是大约3.14159265358979。
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3+一个完整圆[[Radian|弧度]]是2*pi。
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5+Pi为[[Pascal]]的一个[[Function|函数]],它返回圆周率的值。
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7+pi/4 近似于 arctan(1)。
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9+# 参见
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11+- [[doc:rtl/system/pi.html|Pi]]
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13+- [[doc:rtl/system/arctan.html|ArcTan]] 计算反正切
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15+- [圆周率](http://zh.wikipedia.org/wiki/%E5%9C%93%E5%91%A8%E7%8E%87)
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17+---
18+*From the Free Pascal wiki, page "Pi/zh CN", as it stood on 2013-12-11 after a change by Swen, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).*
19+Category: zh

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