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duaichexian

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duaichexian(½ð±Ò+2): ¶àлŶ£¬ÎҵĸßÊýÊéÊǵçÁ¦°æµÃÖ»Óдð°¸Ã»Óйý³Ì 2011-07-17 22:33:12
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Ê×ÏÈ×¢Òâµ½ sin{2*pi *\sqr(n^2-1)} = sin{2*pi *(\sqr(n^2-1) - n)} = sin{- 2pi 1/ (\sqr(n^2-1)+n)}. °Ñ 1/n ¿´³ÉÒ»¸öеıäÁ¿x£¬ ¶ÔxÇ÷½üÓÚ0Çó¼«ÏÞ¡£ÀûÓÃÂޱȴ﷨Ôò£¬sin{- 2pi 1/ (\sqr(n^2-1)+n)} / x   µÄ·Ö×Ó·Öĸͬʱ¶ÔxÇóµ¼Êý¡£ÎÒ¹À¼Æ¼«ÏÞÓ¦¸ÃÊÇ -- pi .
2Â¥2011-07-17 20:21:37
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pengyehui

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3Â¥2011-07-17 20:28:19
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xxppyy

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4Â¥2011-07-17 20:36:59
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xxppyy

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by xxppyy at 2011-07-17 20:36:59:

2Â¥ÊǶԵģ¬×îºó´ð°¸ÊÇ
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5Â¥2011-07-17 20:42:26
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duaichexian

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ÒýÓûØÌû:
Originally posted by xxppyy at 2011-07-17 20:36:59:

ÄãÕâ¸öºóÃæ²¿·ÖÒª¼òµ¥Ò»µã£¬Âí»¢ÁËÒ»ÏÂÎûÎû£¬Ë³±ãÎÊһϣ¬ÓõÄʲôÈí¼þ°¡
6Â¥2011-07-17 22:56:14
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xxppyy

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СÓêÃÈÃÈ(½ð±Ò+1): лл»ØÌû 2011-07-20 10:27:00
ÒýÓûØÌû:
Originally posted by duaichexian at 2011-07-17 22:56:14:
ÄãÕâ¸öºóÃæ²¿·ÖÒª¼òµ¥Ò»µã£¬Âí»¢ÁËÒ»ÏÂÎûÎû£¬Ë³±ãÎÊһϣ¬ÓõÄʲôÈí¼þ°¡

http://www.codecogs.com/latex/eqneditor.php
7Â¥2011-07-18 10:05:13
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