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x = [0        2        4        6        8        10        12        14        16        18        20        22        24        26        28        30        32        34        36        38        40        42        44        46        48        50        52        54        56        58        60];
y = [0        -0.062266677        -0.24566654        -0.540306657        -0.930685337        -1.397042658        -1.917013832        -2.467393374        -3.025818034        -3.572202947        -4.089812009        -4.565900958        -4.991930009        -5.363393378        -5.679349214        -5.941752502        -6.154695636        -6.323649672        -6.454778254        -6.554371005        -6.628418315        -6.682328298        -6.720771223        -6.747627455        -6.766011327        -6.778344184        -6.786453574        -6.79168074        -6.794984035        -6.797030837        -6.79827446
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8Â¥2015-03-30 13:26:51
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vangfeng: ½ð±Ò+5, ¡ï¡ï¡ïºÜÓаïÖú 2015-03-29 21:26:34
CODE:
fun = @(z,x)z(1)*exp(z(2)*x^2)+z(3);
[k,x]=lsqcurvefit(fun,[1 1 1],x,y)

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3Â¥2015-03-29 20:24:44
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3Â¥: Originally posted by ÐűËÄÏɽ at 2015-03-29 20:24:44
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