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function f=myfunc(D,t)
syms n t;
x=1/n^2*exp((-1)*D*n^2*pi^2*t/0.0002^2);
s=symsum(x,n,1,100);
f=1-6/pi^2*s;                              
end
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  t=[180 420 780 1080 1380 1680 1920 2220 2520 2820 3120 3420 3720 4020 4380 4680 4980 5280];
c=[0.08762 0.20444 0.36545 0.48247 0.59 0.67602 0.75 0.80407 0.86 0.9 0.94 0.96831 0.98561 0.99 0.99968 0.999999 1 1];
D0=[0.001];
D=lsqcurvefit(@myfunc,D0,t,c);
f=myfunc(D,t);
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Error using lsqcurvefit (line 247)
Function value and YDATA sizes are incommensurate.
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perper: »ØÌûÖö¥ 2014-05-26 18:49:49
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2Â¥: Originally posted by xiegangmai at 2014-05-26 17:05:13
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2Â¥: Originally posted by xiegangmai at 2014-05-26 17:05:13
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£¨1£©D0=;³õʼֵӦÊǶþάµÄÊý×é¡£
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