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[求助]
matlab擬合求助
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用matlab擬合一個方程: y=(a+bx+cx^2+dx^3)exp(-bx) x=[0.8,0.85,0.9,0.94,1,1.1,1.14,1.144,1.146,1.148,1.149,1.15,1.151,1.152,1.153,1.157,1.25,1.3,1.35,1.4,1.45,1.5,1.55,1.6,1.65,1.7,1.75,1.8,1.85,1.9,1.95,2,2.05,2.1,2.15,2.2,2.25,2.3,2.35,2.4]; y=[129698.6607,81517.14907,48462.38869,30160.54842,12625.39888,830.7904906,0,2.343989057,8.695584894,18.42928479,24.54823752,31.4946096,39.26181681,47.84108015,57.22581538,102.7141275,687.9234793,3872.493796,7589.20011,11578.99871,15654.88623,19681.73873,23751.25051,27388.0944,30756.13673,33816.1486,36542.19252,38921.37873,40955.22819,42660.53072,44067.23581,45213.10408,46138.07991,46880.36067,47474.18002,47948.97387,48329.25318,48634.92208,48881.88591,49082.65691]; 變量:x,y 擬合常數(shù): a,b,c,d 求高手幫助!給出matlab擬合程序。 [ Last edited by chj787 on 2012-5-20 at 16:29 ] |
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昨天看到一個用MatLab演奏卡儂的 可以站短問問他 http://www.gaoyang168.com/bbs/viewthread.php?tid=4519096 |

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