²é¿´: 1045  |  »Ø¸´: 16

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] ¸÷룬Ҫ°ï°ïæ°¡£¬Ð¡µÜÊ®·Ö¸Ðл¡£ ÒÑÓÐ2È˲ÎÓë

ÌâÄ¿ÈçÏ£¬¼ÆËãÆä»ý·Ö¡£

¸÷룬Ҫ°ï°ïæ°¡£¬Ð¡µÜÊ®·Ö¸Ðл¡£


·¢×ÔСľ³æAndroid¿Í»§¶Ë
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
»ØÌûÖ§³Ö ( ÏÔʾ֧³Ö¶È×î¸ßµÄǰ 50 Ãû )

math2000

Ìú¸Ëľ³æ (Ö°Òµ×÷¼Ò)

µÚÒ»Ì⣬Èç¹ûÊÇ´ÓÍ·ËãÆðµÄ»°£¬ÐèҪת»»Îª¶þÖØ»ý·Ö¡£
ÒòΪ²»ºÃÇÃÊýѧ·ûºÅ£¬¼òµ¥ËµÒ»Ï¹ý³Ì£¬¼ÙÉè¼ÇI=e^(-x^2)dx±íʾ¥Ö÷ËùÐèµÄ»ý·Ö
µÚÒ»²½£º I^2=[e^(-x^2)dx]*[e^(-y^2)dy] =e^[-(x^2+y^2)]dxdy
µÚ¶þ²½£º¼«×ø±ê±ä»»£ºx=rcosa,y=rsina
ÔòÉÏ»ý·ÖΪ
I^2=e^(-r^2) rdrda=pi
µÚÈý²½£ºÓɴ˵õ½
I =¸ùºÅpi
15Â¥2015-10-03 16:16:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
ÆÕͨ»ØÌû

maojun1998

Òø³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
µÚÒ»¸öµÃ¶þ·ÖÖ®¸ùºÅÅÉ

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
wirm¨¹ssenwissen.wirwerdeneswissen.
2Â¥2015-10-03 12:17:34
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

Äܹ»¸ø³öÀ´¼ÆËã¹ý³ÌÂð£¿

·¢×ÔСľ³æAndroid¿Í»§¶Ë
3Â¥2015-10-03 12:45:20
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by maojun1998 at 2015-10-03 12:17:34
µÚÒ»¸öµÃ¶þ·ÖÖ®¸ùºÅÅÉ

·Ç³£¸Ðл¡£

·¢×ÔСľ³æAndroid¿Í»§¶Ë
4Â¥2015-10-03 12:45:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by maojun1998 at 2015-10-03 12:17:34
µÚÒ»¸öµÃ¶þ·ÖÖ®¸ùºÅÅÉ

ÎÒÐèÒª¹ý³Ì

·¢×ÔСľ³æAndroid¿Í»§¶Ë
5Â¥2015-10-03 12:46:02
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ê«ÒâµÄÁ÷ÌÊ

½ð³æ (ÕýʽдÊÖ)

¹ÖÄк¢

µÚÒ»µÀÌâÓÐÁ½Öֽⷨ£¬Ò»ÖÖÊÇÉæ¼°¸ßÊý£¬Ò»ÖÖÉæ¼°¸ÅÂÊÂÛ¡£

·¢×ÔСľ³æAndroid¿Í»§¶Ë
6Â¥2015-10-03 12:46:10
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ê«ÒâµÄÁ÷ÌÊ

½ð³æ (ÕýʽдÊÖ)

¹ÖÄк¢

ÒýÓûØÌû:
6Â¥: Originally posted by Ê«ÒâµÄÁ÷ÌÊ at 2015-10-03 12:46:10
µÚÒ»µÀÌâÓÐÁ½Öֽⷨ£¬Ò»ÖÖÊÇÉæ¼°¸ßÊý£¬Ò»ÖÖÉæ¼°¸ÅÂÊÂÛ¡£

´ý»á¸øÄã¾ßÌå²½Öè¡­¡­

·¢×ÔСľ³æAndroid¿Í»§¶Ë
7Â¥2015-10-03 12:46:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
6Â¥: Originally posted by Ê«ÒâµÄÁ÷ÌÊ at 2015-10-03 12:46:10
µÚÒ»µÀÌâÓÐÁ½Öֽⷨ£¬Ò»ÖÖÊÇÉæ¼°¸ßÊý£¬Ò»ÖÖÉæ¼°¸ÅÂÊÂÛ¡£

Äܹ»¸ø³ö¹ý³ÌÂ𣬷dz£¸ÐлÀ²£¬ÕâÊÇ×öÌâµÄ¹ý³ÌÖ»¸ø³öÁ˴𰸣¬Ã»Óйý³Ì¡£

·¢×ÔСľ³æAndroid¿Í»§¶Ë
8Â¥2015-10-03 12:47:27
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

±³¿¿±³¿´ÈÕÂä

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
7Â¥: Originally posted by Ê«ÒâµÄÁ÷ÌÊ at 2015-10-03 12:46:51
´ý»á¸øÄã¾ßÌå²½Öè¡­¡­
...

ºÃµÄ£¬·Ç³£¸Ðл¡£

·¢×ÔСľ³æAndroid¿Í»§¶Ë
9Â¥2015-10-03 12:47:59
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ê«ÒâµÄÁ÷ÌÊ

½ð³æ (ÕýʽдÊÖ)

¹ÖÄк¢

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÒýÓûØÌû:
7Â¥: Originally posted by Ê«ÒâµÄÁ÷ÌÊ at 2015-10-03 12:46:51
´ý»á¸øÄã¾ßÌå²½Öè¡­¡­
...

Õâ¸öÊǸÅÂÊÂ۵Ľⷨ£¡
¸÷룬Ҫ°ï°ïæ°¡£¬Ð¡µÜÊ®·Ö¸Ðл¡£-1



·¢×ÔСľ³æAndroid¿Í»§¶Ë
10Â¥2015-10-03 13:13:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ ±³¿¿±³¿´ÈÕÂä µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼²©] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 khieu8v8m0 2026-02-22 4/200 2026-02-23 06:46 by jsjzfl
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 8rmuugja8q 2026-02-22 6/300 2026-02-23 06:39 by w4l55oybr1
[ÂÛÎÄͶ¸å] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 w89i99eaeh 2026-02-22 4/200 2026-02-23 06:36 by w4l55oybr1
[²©ºóÖ®¼Ò] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 khieu8v8m0 2026-02-22 5/250 2026-02-23 06:34 by w4l55oybr1
[¹«Åɳö¹ú] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 khieu8v8m0 2026-02-22 5/250 2026-02-23 06:29 by w4l55oybr1
[˶²©¼ÒÔ°] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 khieu8v8m0 2026-02-22 8/400 2026-02-23 06:24 by w4l55oybr1
[²©ºóÖ®¼Ò] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +6 3dfhjxgsh7 2026-02-22 8/400 2026-02-23 06:21 by w4l55oybr1
[¿¼ÑÐ] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 usprnugpzw 2026-02-21 10/500 2026-02-23 04:58 by 5jlh3qtdvx
[¿¼²©] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +5 3dfhjxgsh7 2026-02-22 6/300 2026-02-23 02:04 by 5jlh3qtdvx
[½Ìʦ֮¼Ò] °æÃæ·Ñ¸Ã½»Âð +7 Æ»¹ûÔÚÄÄÀï 2026-02-22 8/400 2026-02-22 22:37 by otani
[»ù½ðÉêÇë] »ù½ðÕýÎÄ30Ò³Ö¸µÄÊDZ¨¸æÕýÎÄ»¹ÊÇÕû¸öÉêÇëÊé +5 successhe 2026-02-16 6/300 2026-02-22 21:38 by ɽÎ÷Ðü¿ÕË¿ÕÐüÎ
[»ù½ðÉêÇë] ÃæÉÏ¿ÉÒÔ³¬¹ý30Ò³°É£¿ +4 °¢À­¹±aragon 2026-02-22 4/200 2026-02-22 21:22 by ɽÎ÷Ðü¿ÕË¿ÕÐüÎ
[½Ìʦ֮¼Ò] ΪʲôÖйú´óѧ½ÌÊÚÃÇË®ÁËÄÇô¶àËùνµÄ¶¥»á¶¥¿¯£¬µ«»¹ÊÇ×ö²»³öÓîÊ÷»úÆ÷ÈË£¿ +5 »¶ÀÖËÌÒ¶Ýè 2026-02-21 5/250 2026-02-22 21:15 by ɽÎ÷Ðü¿ÕË¿ÕÐüÎ
[ÂÛÎÄͶ¸å] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +4 usprnugpzw 2026-02-21 6/300 2026-02-22 19:48 by w89i99eaeh
[¿¼ÑÐ] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 3dfhjxgsh7 2026-02-22 4/200 2026-02-22 16:52 by khieu8v8m0
[¹«Åɳö¹ú] ÊÛSCIÒ»ÇøÎÄÕ£¬ÎÒ:8 O5 51O 54,¿ÆÄ¿ÆëÈ«,¿É+¼± +3 usprnugpzw 2026-02-21 4/200 2026-02-22 16:27 by khieu8v8m0
[»ù½ðÉêÇë] ¡°ÈËÎÄÉç¿Æ¶øÂÛ£¬Ðí¶àѧÊõÑо¿»¹Ã»ÓдﵽÃñ¹úʱÆÚµÄˮƽ¡± +4 ËÕ¶«ÆÂ¶þÊÀ 2026-02-18 5/250 2026-02-22 16:07 by liangep1573
[»ù½ðÉêÇë] ʲôÊÇÈËÒ»Éú×îÖØÒªµÄ£¿ +4 ˲ϢÓîÖæ 2026-02-21 4/200 2026-02-22 11:44 by huagongfeihu
[»ù½ðÉêÇë] ½ñÄê´ºÍíÓм¸¸ö½ÚÄ¿ºÜ²»´í£¬µãÔÞ£¡ +11 ˲ϢÓîÖæ 2026-02-16 12/600 2026-02-21 21:14 by lq493392203
[»ù½ðÉêÇë] ÌåÖÆÄÚ³¤±²ËµÌåÖÆÄÚ¾ø´ó²¿·ÖÒ»±²×ÓÔڵײ㣬ÈçͬÄãÃÇÒ»Ñù´ó²¿·ÖÆÕͨ½ÌʦæÇÒÊÕÈëµÍ +9 ˲ϢÓîÖæ 2026-02-20 12/600 2026-02-21 10:39 by »¶ÀÖËÌÒ¶Ýè
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û