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jiaotan123

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[ÇóÖú] ÒÔÏÂmatlab´úÂë³öÏÖÎÊÌâ ÒÑÓÐ1È˲ÎÓë

syms a1 a2 a3 a4 a5 x;
t=a1*x+a2*x^2+a3*x^3+a4*x^4+a5*x^5;
f=(1+t+t^2/2+t^3/6+t^4/24+t^5/120);
f1=int(x*f,x,0.5779,13.5993);
g=int(f,x, 0.5779,13.5993);
r1=1-f1/(6.86*g);
f2=int(x^2*f,x,0.5779,13.5993);
r2=1-f2/(54.39*g);
f3=int(x^3*f,x,0.5779,13.5993);
r3=1-f3/(478.14*g);
f4=int(x^4*f,x,0.5779,13.5993);
r4=1-f4/(4534.51*g);
f5=int(x^5*f,x,0.5779,13.5993);
r5=1-f5/(45534.81*g);
r=r1^2+r2^2+r3^2+r4^2+r5^2;
a=[a1,a2,a3,a4,a5];
a0=[0,0,0,0,0];
options=[];
a=fminu(r,a0,options)

ÔËÐкó³öÏÖ£¬??? Undefined function or method 'fminu' for input arguments of type 'sym'.
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jiaotan123

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ÒýÓûØÌû:
10Â¥: Originally posted by bruceleem at 2013-12-30 23:15:17
Â¥Ö÷µÄ´úÂëÖÐfminuºÃÏñ²»ÊÇmatlabµÄ×Ô´øº¯Êý¡£Èç¹ûÃ÷È·ÁËÊÇÇ󼫴óÖµ»òÊǼ«Ð¡Öµ£¬²¢ÇÒÓÐa1£¬a2£¬a3£¬a4£¬a5µÄȡֵ·¶Î§£¬ÊÇ¿ÉÒÔÇóµ½½á¹ûµÄ¡£ºÇºÇ£¬Â¥Ö÷¼ÓÓÍ£¡£¡

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11Â¥2013-12-30 23:26:27
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fish.yfyh

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º¯ÊýfminuûÓж¨Òå°¡£¿
2Â¥2013-12-29 21:27:32
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

jiaotan123

ľ³æ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by fish.yfyh at 2013-12-29 21:27:32
º¯ÊýfminuûÓж¨Òå°¡£¿

ÄÇÓ¦¸ÃÔõô¸Ä°¡£¬ÎÒ²»Çå³þ¡£ËµºÃÁËÂú·Ö¸øÄã

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3Â¥2013-12-29 23:53:33
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fish.yfyh

Í­³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by jiaotan123 at 2013-12-29 23:53:33
ÄÇÓ¦¸ÃÔõô¸Ä°¡£¬ÎÒ²»Çå³þ¡£ËµºÃÁËÂú·Ö¸øÄã
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4Â¥2013-12-30 10:39:14
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