±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1151  |  »Ø¸´: 3

wejonathan

½ð³æ (СÓÐÃûÆø)

[ÇóÖú] Matlab С°×ÎÊÒ»¸ö¼òµ¥µÄ ´øÓбäÁ¿ÔËËãµÄ ÎÊÌâ ÒÑÓÐ1È˲ÎÓë

´òËãÓÃmatlab¹¹ÔìÒ»¸ö´øÓбäÁ¿µÄ±í´ïʽ£¬
µ«ÊÇÒ»Ö±ÌáʾÎÞ·¨´Ó sym ת±äµ½ double¡£ÎÒ¸Õ½Ó´¥²»¾Ã£¬ËùÒÔÇë´óÉñ°ï°ïæ

syms t
T=ones(5,1);
for i=1:1:4
    for j=1:1:5
        T(i+1,j)=T(i+1,j)*(t-x(j));
    end
end
T

´Ó sym ת»»Îª double ʱ³öÏÖÒÔÏ´íÎó:
´íÎóʹÓà mupadmex
Error in MuPAD command: DOUBLE cannot convert the input expression into a double array.
If the input expression contains a symbolic variable, use the VPA function instead.

³ö´í Question1st (line 35)
        T(i+1,j)=T(i+1,j)*(t-x(j));
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

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

wdlgezi

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
²»ÖªµÀÄãµÄxÊÇÔõô¶¨ÒåµÄ£¬ÎÒ¹ÃÇÒÉè³ÉËæ»úµÄÁË£¬´úÂëÈçÏ£º
syms t
T=ones(5,1);
x=rand(5,1);
T=T.*(t-x);
ÄãµÄÄÇÁ½¸öÑ­»·Êµ¼Ê¾ÍÊǾØÕóµã³Ë¡£ÕâÑù²»»á³öÏÖÄã±àÒëµÄÄǸöÎÊÌâ
¸ÒÎÊ·Ôںη½
2Â¥2015-01-11 10:36:26
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wejonathan

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by wdlgezi at 2015-01-11 10:36:26
²»ÖªµÀÄãµÄxÊÇÔõô¶¨ÒåµÄ£¬ÎÒ¹ÃÇÒÉè³ÉËæ»úµÄÁË£¬´úÂëÈçÏ£º
syms t
T=ones(5,1);
x=rand(5,1);
T=T.*(t-x);
ÄãµÄÄÇÁ½¸öÑ­»·Êµ¼Ê¾ÍÊǾØÕóµã³Ë¡£ÕâÑù²»»á³öÏÖÄã±àÒëµÄÄǸöÎÊÌâ

ÄÇôΪʲôÄãµÄÕâ¸ö²»»á³öÏÖÎÊÌ⣬¶øÎÒµÄÄǸö¾Í»á³öÏÖÎÊÌâÄØ£¿

[ ·¢×ÔСľ³æ¿Í»§¶Ë ]
3Â¥2015-01-11 11:22:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wdlgezi

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
3Â¥: Originally posted by wejonathan at 2015-01-11 11:22:43
ÄÇôΪʲôÄãµÄÕâ¸ö²»»á³öÏÖÎÊÌ⣬¶øÎÒµÄÄǸö¾Í»á³öÏÖÎÊÌâÄØ£¿
...

ÄãÄÇÑùËãĬÈÏÊÇÔÚdoubleϼÆË㣬ËùÒÔ»á³öÏÖÎÞ·¨½«tת»»³ÉdoubleµÄÎÊÌâ
¸ÒÎÊ·Ôںη½
4Â¥2015-01-11 12:11:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ wejonathan µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] »¯Ñ§¹¤³Ìµ÷¼Á289 +14 yangæÃ 2026-04-07 15/750 2026-04-07 12:31 by 1018329917
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄÏ090202Çóµ÷¼Á +3 ÔÚÏßÇóÓÐѧÉÏ 2026-04-07 3/150 2026-04-07 10:24 by kk112233
[¿¼ÑÐ] Ò»Ö¾Ô¸ÎäÀí³µÁ¾×¨Ë¶×Ü·Ö 281 Çóµ÷¼Á +4 Éϰ¶Ñо¿Éú. 2026-04-02 4/200 2026-04-07 09:52 by ¼ÓÓÍÏòδÀ´°¡
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +10 Ò»ÑùYWY 2026-04-06 10/500 2026-04-06 21:05 by lbsjt
[¿¼ÑÐ] ר˶0854³õÊÔ¿¼²Ä¿Æ»ù£¬Çóµ÷¼Á +6 3220548044 2026-04-06 9/450 2026-04-06 10:26 by barlinike
[¿¼ÑÐ] Çóµ÷¼Á +5 chenxrlkx 2026-04-05 7/350 2026-04-06 07:54 by houyaoxu
[¿¼ÑÐ] ¿¼Ñе÷¼Á +5 ËÄ´¨ÍõÌÎ 2026-04-04 5/250 2026-04-04 22:18 by à£à£à£0119
[¿¼ÑÐ] 085601£¬Ò»Ö¾Ô¸Ïôó334¸´ÊÔ±»Ë¢Çóµ÷¼Á +13 ÔøÑöÖ® 2026-04-03 15/750 2026-04-04 20:13 by dongzh2009
[¿¼ÑÐ] 317·Ö Ò»Ö¾Ô¸½­ÄÏ´óѧ »¯Ñ§¹¤³Ìѧ˶ Çóµ÷¼Á +6 YinTai 2026-04-03 6/300 2026-04-03 22:30 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çóµ÷¼Á +4 15064154688 2026-04-03 5/250 2026-04-03 15:07 by zrongyan
[¿¼ÑÐ] Ò»Ö¾Ô¸°²»Õ´óѧ0817»¯Ñ§¹¤³ÌÓë¼¼Êõ£¬Çóµ÷¼Á +14 ÎÒ²»ÊÇÖ»Òò 2026-04-02 15/750 2026-04-03 09:49 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +3 bvzz 2026-04-01 3/150 2026-04-03 09:47 by À¶ÔÆË¼Óê
[¿¼ÑÐ] ÖØÇì´óѧ²ÄÁÏÓ뻯¹¤085600£¬³õÊÔ370+£¬ÇóÇóµ÷¼Á½¨Òé +8 shzhou_ 2026-04-01 9/450 2026-04-03 09:31 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 366Çóµ÷¼ÁÒ»Ö¾Ô¸¶«±±´óѧ +8 ÔËÆøÀ´µÃÈôÓÐËÆÎ 2026-04-02 8/400 2026-04-02 21:39 by dongzh2009
[¿¼ÑÐ] 260Çóµ÷¼Á +6 ÖìÜÆÁÕ 2026-04-02 6/300 2026-04-02 20:27 by 6781022
[¿¼ÑÐ] 318Çóµ÷¼Á£¬¼ÆËã²ÄÁÏ·½Ïò +10 Îüß÷Óк¦óÏÃü 2026-04-01 11/550 2026-04-02 16:29 by oooqiao
[¿¼ÑÐ] 08¹¤¿ÆÇóµ÷¼Á290·Ö +5 1314Åõ»¨ 2026-04-02 8/400 2026-04-02 13:16 by ÇÇßÕßÕßÕ
[¿¼ÑÐ] Çóµ÷¼Á£¬Ò»Ö¾Ô¸ÄϾ©Ê¦·¶´óѧ¼ÆËã»úר˶£¬³õÊÔ373£¬Áù¼¶Í¨¹ý£¬ +3 ¼ÆËã»ú×·ÃÎÈË 2026-04-01 3/150 2026-04-02 07:57 by fxue1114
[¿¼ÑÐ] 353Çóµ÷¼Á +4 À­¹³²»Ðí±ä 2026-04-01 4/200 2026-04-01 18:10 by ¼Çʱ¾2026
[¿¼ÑÐ] ¸´ÊÔµ÷¼Á +7 Ë«ÂíβƦÀϰå2 2026-03-31 7/350 2026-03-31 19:49 by Dyhoer
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û