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ÏßÐÔ·½³Ì×éÐÎÈçXx=YÐÎʽ£¬ÏµÊý¾ØÕó·Ö±ðΪ X=[11 A B C D E F;A B C D E F G;B C D E F G H;C D E F G H I;D E F G H I J;E F G H I J K;F G H I J K L] Y=[M P Q R S T U]' x0=X\Y x1=inv(X)*Y p=polyfit(k,f,6) ÆäÖУ¬ A =5264 B =4107392 C =3.6781e+009 D =3.5353e+012 E =3.5435e+015 F =3.6462e+018 G =3.8159e+021 H =4.0382e+024 I =4.3053e+027 J =4.6132e+030 K =4.9603e+033 L =5.3463e+036 M =110 P =78724 Q =68178704 R =6.4323e+010 S =6.3723e+013 T =6.5068e+016 U =6.7747e+019 ÓÃMATLABÔËÐнá¹ûÈçÏ£º Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 2.240578e-037. (Type "warning off MATLAB:nearlySingularMatrix" to suppress this warning.) > In C:\MATLAB6p5\work\xiaozhou.m at line 28 x0 = 0.4048 0.0496 -0.0001 -0.0000 0.0000 -0.0000 0.0000 Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 2.240578e-037. > In C:\MATLAB6p5\work\xiaozhou.m at line 29 x1 = 0.4048 0.0496 -0.0001 -0.0000 0.0000 -0.0000 0.0000 ??? Error using ==> polyfit X and Y vectors must be the same size. Error in ==> C:\MATLAB6p5\work\xiaozhou.m On line 30 ==> p=polyfit(k,f,6) Çë½Ì¸ßÊÖÈçºÎ½â¾ö£¿ÈçºÎÄܼÆËã³ö½á¹û£¿´íÎóÈçºÎ´¦Àí£¿·Ç³£¸Ðл£¡ [ Last edited by nono2009 on 2010-1-29 at 10:16 ] |
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