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jfili
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javeey(½ð±Ò+1):ллÌṩ°ïÖú 2010-03-22 14:25
wuguocheng(½ð±Ò+2):½â´ðµÄ²»´íµÄ, ¿ÉÒԶཱÀø¼¸¸ö½ð±Ò. 2010-03-22 16:31
wuguocheng(ÊýѧEPI+1):ÊÚÓèһöEPI, ΪÊýѧ°æ¹±Ï׺ܴó 2010-04-19 11:59
javeey(½ð±Ò+1):ллÌṩ°ïÖú 2010-03-22 14:25
wuguocheng(½ð±Ò+2):½â´ðµÄ²»´íµÄ, ¿ÉÒԶཱÀø¼¸¸ö½ð±Ò. 2010-03-22 16:31
wuguocheng(ÊýѧEPI+1):ÊÚÓèһöEPI, ΪÊýѧ°æ¹±Ï׺ܴó 2010-04-19 11:59
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µÚÒ»²½£ºint dx ln(a+bx)/x £¨b²»µÈÓÚ0£©Õâ¸ö»ý·ÖÓ¦¸ÃºÜÈÝÒ×°É µÚ¶þ²½£ºÎÊÌâµÄ¹Ø¼ü¾ÍÊÇÈçºÎ°ÑÎÊÌâת³ÉµÚÒ»²¿ÖÐÒѾµÃµ½µÄÎÊÌâÁË µÚÈý²½£ºÆäʵҪ´ïµ½µÚ¶þ²½ºÜ¼òµ¥£¬°ÑÄãµÄÎÊÌâÖÐµÄ ln ºóÃæµÄ¶«Î÷·Ö½âΪÁ½¸öÒ»´Î¶àÏîʽµÄ³Ë»ý£¬ÎÊÌâ¾Í±ä³ÉÁ˵ÚÒ»²½ÎÊÌâÐÎʽµÄºÍÁË µÚËIJ½£ºÔÚ¸´ÊýÓòÖ®ÖУ¬ÈκÎÒ»¸ö¶þ´Î¶àÏîʽ¶¼¿ÉÒÔµÈÓÚÁ½¸öÒ»´Î¶àÏîʽµÄ³Ë»ý ÎÊÌâ½â¾ö£¬£¬£¬£¬ |
4Â¥2010-03-22 14:02:08
bluesine
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Сľ³æ(½ð±Ò+0.5):¹§Ï²ÇÀɳ·¢£¬¸ø¸öºì°ü
javeey(½ð±Ò+2):Õâ¸ö´ð°¸Õ泤£¬ÐÁ¿àÁË 2010-03-22 09:01
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javeey(½ð±Ò+2):Õâ¸ö´ð°¸Õ泤£¬ÐÁ¿àÁË 2010-03-22 09:01
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ÏȸøÄã½á¹û£º int('log(1-a*x+a*x^2)/x',0,1) ans = log((a-(a*(a-4))^(1/2))/(a+(a*(a-4))^(1/2)))*log(2)-log((a-(a*(a-4))^(1/2))/(a+(a*(a-4))^(1/2)))*log(1/a*(a+(a*(a-4))^(1/2)))+log((a+(a*(a-4))^(1/2))/(a-(a*(a-4))^(1/2)))*log(2)-log((a+(a*(a-4))^(1/2))/(a-(a*(a-4))^(1/2)))*log(1/a*(a-(a*(a-4))^(1/2)))+dilog(2*a/(a+(a^2-4*a)^(1/2)))+dilog(2*a/(a-(a^2-4*a)^(1/2)))-1/3*pi^2-2*i*pi*log(2)+i*pi*log(1/a*(a+(a*(a-4))^(1/2)))+i*pi*log(1/a*(a-(a*(a-4))^(1/2))) |

2Â¥2010-03-21 21:32:20
cosmology
½ð³æ (ÕýʽдÊÖ)
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- Ìû×Ó: 418
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- ³æºÅ: 230145
- ×¢²á: 2006-03-26
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3Â¥2010-03-22 12:59:22
cosmology
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 15 (СѧÉú)
- ½ð±Ò: 1411.3
- ºì»¨: 1
- Ìû×Ó: 418
- ÔÚÏß: 48.6Сʱ
- ³æºÅ: 230145
- ×¢²á: 2006-03-26
- ÐÔ±ð: GG
- רҵ: »ù´¡ÎïÀíѧ
5Â¥2010-03-22 16:13:15














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