²é¿´: 2098  |  »Ø¸´: 8

xiao-lin

Ìú¸Ëľ³æ (СÓÐÃûÆø)

[ÇóÖú] ¾ØÕó·¶ÊýµÄÆ«µ¼ÔõôÇó£¿

È總¼þͼƬËùʾ£¬XΪһ¸ö·½Õó¾ØÕ󣬸þØÕó·¶ÊýµÄÆ«µ¼ÔõôÇó£¿
¾ØÕó·¶ÊýµÄÆ«µ¼ÔõôÇó£¿
how to compute.jpg
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

Ñ¡Ôñ¿ÆÑУ¬Ñ¡Ôñ¸¶³ö
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yantaishi

¾èÖú¹ó±ö (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Õâ¸öÓй«Ê½£¬ÕÒÕÒÕÅÏÍ´ïµÄÊé¡£
2Â¥2013-07-29 20:20:50
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiao-lin

Ìú¸Ëľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by yantaishi at 2013-07-29 20:20:50
Õâ¸öÓй«Ê½£¬ÕÒÕÒÕÅÏÍ´ïµÄÊé¡£

ºÜ¸ÐлÄúµÄ»Ø´ð£¬µ«ÎÒÏÂÔØÁËÕÅÏÍ´ïµÄ¡¶¾ØÕó·ÖÎöÓëÓ¦Óá·£¬Ã»Óп´µ½Õâ¸ö¹«Ê½£¬ÈçÄúÄÜÕÒµ½Õâ¸ö¹«Ê½£¬20¸ö½ð±Ò¶¼¸øÄãÁË¡£
Ñ¡Ôñ¿ÆÑУ¬Ñ¡Ôñ¸¶³ö
3Â¥2013-07-29 20:50:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Halmos

Ìú³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
xiao-lin: ½ð±Ò+1 2013-07-30 09:36:21
Use the following formula $$\Delta_X tr(AXBX^T ) = \Delta_X tr(XBX^TA) = A^TXB^T + AXB$$
4Â¥2013-07-30 00:15:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

yantaishi

¾èÖú¹ó±ö (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
xiao-lin: ½ð±Ò+2, ¡ïÓаïÖú 2013-07-30 09:35:08
ÕÅÏÍ´ïÊ飬264Ò³ÓÐÄãÐèÒªµÄ¹«Ê½¡£
5Â¥2013-07-30 08:02:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiao-lin

Ìú¸Ëľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by yantaishi at 2013-07-30 08:02:21
ÕÅÏÍ´ïÊ飬264Ò³ÓÐÄãÐèÒªµÄ¹«Ê½¡£

264Ò³µÄ¹«Ê½ÎÒ¿´µ½ÁË£¬µ«ÊéÖж¼ÊǶþ´ÎÐ͵ģ¬ÎÒµÄÇé¿öÓÐËĴη½£¬ËùÒԲŲ»ÖªµÀÔõôÇó½â
Ñ¡Ôñ¿ÆÑУ¬Ñ¡Ôñ¸¶³ö
6Â¥2013-07-30 09:34:53
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiao-lin

Ìú¸Ëľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
4Â¥: Originally posted by Halmos at 2013-07-30 00:15:52
Use the following formula $$\Delta_X tr(AXBX^T ) = \Delta_X tr(XBX^TA) = A^TXB^T + AXB$$

ÎÒµÄÇé¿öÓÐËĴη½£¬ÄãÕâ¸ö¹«Ê½ºÃÏñ²»ÊÊÓÃ
Ñ¡Ôñ¿ÆÑУ¬Ñ¡Ôñ¸¶³ö
7Â¥2013-07-30 09:36:04
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Halmos

Ìú³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
7Â¥: Originally posted by xiao-lin at 2013-07-30 09:36:04
ÎÒµÄÇé¿öÓÐËĴη½£¬ÄãÕâ¸ö¹«Ê½ºÃÏñ²»ÊÊÓÃ...

Don't you know product rule?
8Â¥2013-07-31 06:51:33
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

xiao-lin

Ìú¸Ëľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
8Â¥: Originally posted by Halmos at 2013-07-31 06:51:33
Don't you know product rule?...

I am sorry. I do not know. So I need some help.
Ñ¡Ôñ¿ÆÑУ¬Ñ¡Ôñ¸¶³ö
9Â¥2013-07-31 10:51:15
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ xiao-lin µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 293Çóµ÷¼Á +9 zjlµÄºÅ 2026-03-16 14/700 2026-03-18 05:13 by qyttÌÚ·É
[¿¼ÑÐ] ²ÄÁÏר˶306Ó¢Ò»Êý¶þ +8 z1z2z3879 2026-03-16 10/500 2026-03-18 00:01 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] 268Çóµ÷¼Á +7 ºÃÔËÁ¬Ã಻¾ø 2026-03-12 8/400 2026-03-17 20:28 by xilongliang
[¿¼ÑÐ] 344Çóµ÷¼Á +4 knight344 2026-03-16 4/200 2026-03-17 17:27 by ruiyingmiao
[¿¼ÑÐ] 274Çóµ÷¼Á0856²ÄÁÏ»¯¹¤ +13 z2839474511 2026-03-11 14/700 2026-03-17 16:51 by share_joy
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤Çóµ÷¼Á +5 Ð÷ÐÒÓë×Ó 2026-03-17 5/250 2026-03-17 16:40 by laoshidan
[¿¼ÑÐ] ÓÐûÓеÀÌú/ÍÁľµÄÏëµ÷¼ÁÄÏÁÖ£¬¸ø×Ô¼ºÕÐʦµÜÖС« +3 TqlXswl 2026-03-16 7/350 2026-03-17 15:23 by TqlXswl
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁϹ¤³Ì£¨085601£©×¨Ë¶ÓпÆÑо­ÀúÈýÏî¹ú½±Á½¸öʵÓÃÐÍרÀûÒ»ÏîÊ¡¼¶Á¢Ïî +6 ´ó»ðɽС»ðɽ 2026-03-16 8/400 2026-03-17 15:05 by ÎÞи¿É»÷111
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤Ò»Ö¾Ô¸Äϲý´óѧ327Çóµ÷¼ÁÍÆ¼ö +7 Ncdx123456 2026-03-13 8/400 2026-03-16 12:15 by karry wen
[¿¼ÑÐ] 0703 ÎïÀí»¯Ñ§µ÷¼Á +3 ÎÒ¿ÉÒÔÉϰ¶µÄ¶Ô 2026-03-13 5/250 2026-03-16 10:50 by ÎÒ¿ÉÒÔÉϰ¶µÄ¶ÔÂ
[¿¼²©] ¶«»ªÀí¹¤´óѧ»¯²Äרҵ26½ì˶ʿ²©Ê¿ÉêÇë +6 zlingli 2026-03-13 6/300 2026-03-15 20:00 by ryzcf
[»ù½ðÉêÇë] ÏÖÔÚÈçºÎ»Ø±ÜÈ¥ÄêµÄijһ¸öר¼Ò£¬²»ÖªµÀÃû×Ö +3 zk200107 2026-03-12 6/300 2026-03-14 17:13 by zk200107
[¿¼ÑÐ] 255Çóµ÷¼Á +3 Àî¼Î»Û£¬ 2026-03-12 4/200 2026-03-14 16:58 by ÓÐÖ»ÀêÅ«
[¿¼ÑÐ] 328Çóµ÷¼Á +3 5201314Lsy£¡ 2026-03-13 6/300 2026-03-14 15:31 by hyswxzs
[¿¼ÑÐ] 304Çóµ÷¼Á +6 Mochaaaa 2026-03-12 7/350 2026-03-13 22:18 by ÐÇ¿ÕÐÇÔÂ
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤085600µ÷¼ÁÇóÀÏʦÊÕÁô +9 jiaanl 2026-03-11 9/450 2026-03-13 20:22 by JourneyLucky
[˶²©¼ÒÔ°] 085600 260·ÖÇóµ÷¼Á +3 Ìì¿Õ»¹ÏÂÓêô 2026-03-13 5/250 2026-03-13 18:46 by Ìì¿Õ»¹ÏÂÓêô
[¿¼ÑÐ] ÇóbÇøÑ§Ð£µ÷¼Á +3 ÖÜ56 2026-03-11 3/150 2026-03-13 16:20 by JourneyLucky
[¿¼ÑÐ] 274Çóµ÷¼Á +3 S.H1 2026-03-12 3/150 2026-03-13 15:15 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏ301·ÖÇóµ÷¼Á +5 Liyouyumairs 2026-03-12 5/250 2026-03-13 14:42 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û