±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 719  |  »Ø¸´: 6

duaichexian

гæ (СÓÐÃûÆø)

[ÇóÖú] Çó¼«ÏÞµÄÎÊÌâ

µ±nÇ÷ÓÚÎÞÇî´óʱ n*sin{2*pi*¸ùºÅÏ£¨n^2-1)}µÄ¼«ÏÞ
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

sskkyy

Òø³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

duaichexian(½ð±Ò+2): ¶àлŶ£¬ÎҵĸßÊýÊéÊǵçÁ¦°æµÃÖ»Óдð°¸Ã»Óйý³Ì 2011-07-17 22:33:12
\sqr(a) ±íʾ¸ùºÅÏÂa¡£

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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pengyehui

ľ³æ (ÕýʽдÊÖ)

2Â¥ÕýÈ·
3Â¥2011-07-17 20:28:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xxppyy

ľ³æ (СÓÐÃûÆø)

4Â¥2011-07-17 20:36:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xxppyy

ľ³æ (СÓÐÃûÆø)

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

2Â¥ÊǶԵģ¬×îºó´ð°¸ÊÇ
-pi
5Â¥2011-07-17 20:42:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

duaichexian

гæ (СÓÐÃûÆø)

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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xxppyy

ľ³æ (СÓÐÃûÆø)

¡ï
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
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ duaichexian µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 070300»¯Ñ§354Çóµ÷¼Á +3 101´ÎÏ£Íû 2026-03-28 3/150 2026-03-29 00:28 by 544594351
[¿¼ÑÐ] Ò»Ö¾Ô¸Ö£ÖÝ´óѧ£¬080500ѧ˶£¬×Ü·Ö317·ÖÇóµ÷¼Á +5 ¾Ù¸öÀõ×Óoi 2026-03-24 6/300 2026-03-28 23:03 by lizhi8172
[¿¼ÑÐ] ѧ˶274Çóµ÷¼Á +9 LiÀîÓã 2026-03-26 9/450 2026-03-28 21:42 by bymhappy
[¿¼ÑÐ] 071000ÉúÎïѧÇóµ÷¼Á£¬³õÊԳɼ¨343 +7 ССÌðÃæÍÅ 2026-03-25 7/350 2026-03-28 20:25 by ÌÆãå¶ù
[¿¼ÑÐ] 0856²ÄÁÏ»¯¹¤µ÷¼Á ×Ü·Ö330 +11 zhubinhao 2026-03-27 11/550 2026-03-28 20:22 by 418490947
[¿¼ÑÐ] ±¾¿ÆÐÂÄÜÔ´¿ÆÑ§Ó빤³Ì£¬Ò»Ö¾Ô¸»ªÀíÄܶ¯285Çóµ÷¼Á +3 AZMK 2026-03-27 5/250 2026-03-28 16:19 by xxxsssccc
[¿¼ÑÐ] 312£¬ÉúÎïѧÇóµ÷¼Á +3 СÒëͬѧabc 2026-03-28 3/150 2026-03-28 15:32 by ÂäÉ˼
[¿¼ÑÐ] »¯Ñ§0703 µ÷¼Á 306·Ö Ò»Ö¾Ô¸211 +4 26ÒªÉϰ¶ 2026-03-28 4/200 2026-03-28 15:30 by 1018329917
[¿¼ÑÐ] 266·Ö£¬Çó²ÄÁÏÒ±½ðÄÜÔ´»¯¹¤µÈµ÷¼Á +7 ÍÛºôºßºôºß 2026-03-27 9/450 2026-03-28 12:22 by zllcz
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö ²ÄÁÏ 304 +15 ºÉ°üµ°hyj 2026-03-26 15/750 2026-03-28 04:13 by fmesaito
[¿¼ÑÐ] 291Çóµ÷¼Á +7 ‹üÈA 2026-03-22 7/350 2026-03-28 04:02 by fmesaito
[¿¼ÑÐ] 085600£¬²ÄÁÏÓ뻯¹¤321·Ö£¬Çóµ÷¼Á +9 ´ó²öС×Ó 2026-03-27 9/450 2026-03-27 14:30 by mmm just
[¿¼ÑÐ] ²ÄÁÏÇóµ÷¼Á +5 .m.. 2026-03-25 5/250 2026-03-27 11:08 by ²»³Ôô~µÄ؈
[¿¼ÑÐ] »úеѧ˶310·Ö£¬ÊýÒ»Ó¢Ò»£¬Ò»Ö¾Ô¸211±¾¿ÆË«·ÇÕÒµ÷¼ÁÐÅÏ¢ +3 @357 2026-03-25 3/150 2026-03-26 16:34 by by.MENG
[¿¼ÑÐ] »·¾³×¨Ë¶324·ÖÇóµ÷¼ÁÍÆ¼ö +5 ÐùСÄþ¡ª¡ª 2026-03-26 5/250 2026-03-26 12:05 by i_cooler
[¿¼ÑÐ] ÇóbÇøÔºÐ£µ÷¼Á +4 ÖÜ56 2026-03-24 5/250 2026-03-25 17:12 by yishunmin
[¿¼ÑÐ] 0854µç×ÓÐÅÏ¢Çóµ÷¼Á 324 +4 Promise-jyl 2026-03-23 4/200 2026-03-25 11:36 by Sugarlight
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-24 4/200 2026-03-24 16:41 by peike
[¿¼ÑÐ] 361Çóµ÷¼Á +3 Glack 2026-03-22 3/150 2026-03-23 22:03 by fuyu_
[¿¼ÑÐ] 336»¯¹¤µ÷¼Á +4 Íõ´ó̹1 2026-03-23 5/250 2026-03-23 18:32 by allen-yin
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û