²é¿´: 3815  |  »Ø¸´: 2
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

1xiaohua1

ľ³æ (ÕýʽдÊÖ)

[ÇóÖú] ²¢Ê¸ÕÅÁ¿µÄËõ²¢(tensor contraction)ÔËËã £¬Çë¸ßÊÖÖ¸µã ÒÑÓÐ1È˲ÎÓë

²¢Ê¸ÕÅÁ¿µÄËõ²¢(tensor contraction)ÔËË㣬

Çë¸ßÊÖ½âÊÍÒ»ÏÂͼÉÏ×îºóÒ»¸ö±í´ïʽ£¬

È»ºó    ¼ÆËã Ò»ÏÂÈçÏ£º   V=[ V11 ,V12 ; V21 ,V22]    2*2ÕÅÁ¿  £¬S=¡¾S1,S2¡¿  1*2ÏòÁ¿
               ÓÐ ±í´ïʽ£ºA=V*S
Çó |A|

²¢Ê¸ÕÅÁ¿µÄËõ²¢(tensor contraction)ÔËËã £¬Çë¸ßÊÖÖ¸µã
11.png
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

»î×Å£¬¾ÍÒª²»Í£µØ×öÊÂ
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

1xiaohua1

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by LJscrew at 2015-04-27 20:27:55
ÄãÕâô¾¢±¬µÄÕÕÆ¬°¡¡£¡£¡£¡£¡£ÕæµÄ°Ñ³Ö²»×¡°¡

Õ¦ÁË£¿ÔÚÍøÉÏËѵÄ
»î×Å£¬¾ÍÒª²»Í£µØ×öÊÂ
3Â¥2015-04-30 17:45:58
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 3 ¸ö»Ø´ð

LJscrew

Òø³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÄãÕâô¾¢±¬µÄÕÕÆ¬°¡¡£¡£¡£¡£¡£ÕæµÄ°Ñ³Ö²»×¡°¡
2Â¥2015-04-27 20:27:55
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ¹¤¿Æ²ÄÁÏ085601 279Çóµ÷¼Á +7 À§ÓÚÐdz¿ 2026-03-17 9/450 2026-03-20 17:38 by ÎÞи¿É»÷111
[¿¼ÑÐ] 0817 »¯Ñ§¹¤³Ì 299·ÖÇóµ÷¼Á ÓпÆÑо­Àú ÓжþÇøÎÄÕ +21 rare12345 2026-03-18 21/1050 2026-03-20 14:31 by ÎÞи¿É»÷111
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ»¯Ñ§337Çóµ÷¼Á +4 niko- 2026-03-19 5/250 2026-03-20 13:49 by ´ÙÌì³É
[¿¼ÑÐ] 274Çóµ÷¼Á +8 S.H1 2026-03-18 8/400 2026-03-20 11:53 by ѧԱ8dgXkO
[ÂÛÎÄͶ¸å] ÉêÇë»Ø¸åÑÓÆÚÒ»¸öÔ£¬±à¼­Í¬ÒâÁË¡£µ«ÏµÍ³ÉϵÄʱ¼äû±ä£¬¸ø±à¼­ÓÖдÓʼþÁË£¬Ã»»Ø¸´ 10+3 wangf9518 2026-03-17 4/200 2026-03-19 23:55 by babero
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +4 z1z2z3879 2026-03-14 6/300 2026-03-19 17:18 by fei626-918
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤´óѧ0703»¯Ñ§318·Ö£¬ÓпÆÑо­Àú£¬Çóµ÷¼Á +3 һƿ±½¼×Ëá 2026-03-14 3/150 2026-03-19 15:17 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] 344Çóµ÷¼Á +6 knight344 2026-03-16 7/350 2026-03-18 20:13 by walc
[¿¼ÑÐ] ¡¾Í¬¼ÃÈí¼þ¡¿Èí¼þ£¨085405£©¿¼ÑÐÇóµ÷¼Á +3 2026eternal 2026-03-18 3/150 2026-03-18 19:09 by ²«»÷518
[¿¼ÑÐ] 280Çóµ÷¼Á +6 ¹¾ààÏþÏþ 2026-03-18 7/350 2026-03-18 11:25 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] ²ÄÁÏר˶326Çóµ÷¼Á +6 Ä«ìÏæ¦Ý· 2026-03-15 7/350 2026-03-17 17:10 by ruiyingmiao
[¿¼ÑÐ] 290Çóµ÷¼Á +3 p asserby. 2026-03-15 4/200 2026-03-17 16:35 by wangkm
[¿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] ¶«ÄÏ´óѧ364Çóµ÷¼Á +5 JasonYuiui 2026-03-15 5/250 2026-03-16 21:28 by ľ¹Ï¸à
[¿¼ÑÐ] 326Çóµ÷¼Á +4 ŵ±´¶û»¯Ñ§½±êéê 2026-03-15 7/350 2026-03-16 17:11 by ŵ±´¶û»¯Ñ§½±êéê
[»ù½ðÉêÇë] ½ñÄêµÄ¹ú»ù½ðÊÇ´ò·ÖÖÆÂ𣿠50+3 zhanghaozhu 2026-03-14 3/150 2026-03-16 17:07 by ±±¾©À³ÒðÈóÉ«
[¿¼ÑÐ] 070300»¯Ñ§Ñ§Ë¶Çóµ÷¼Á +6 Ì«Ïë½ø²½ÁË0608 2026-03-16 6/300 2026-03-16 16:13 by kykm678
[¿¼ÑÐ] 26¿¼ÑÐÒ»Ö¾Ô¸ÖйúʯÓÍ´óѧ(»ª¶«)305·ÖÇóµ÷¼Á +3 ¼ÎÄêÐÂ³Ì 2026-03-15 3/150 2026-03-15 13:58 by ¹þ¹þ¹þ¹þºÙºÙºÙ
[¿¼ÑÐ] 297Ò»Ö¾Ô¸ÉϽ»085600Çóµ÷¼Á +5 Ö¸¼â°ËǧÀï 2026-03-14 5/250 2026-03-14 17:26 by a²»Ò×
[¿¼ÑÐ] 297Çóµ÷¼Á +4 ѧº£Æ¯²´ 2026-03-13 4/200 2026-03-14 11:51 by ÈÈÇéɳĮ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û