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-   -   [MATLAB基础] 帮我看下这个输出结果什么意思吧,谢谢。 (https://www.labfans.com/bbs/showthread.php?t=11143)

浣溪沙 2010-03-31 20:49

帮我看下这个输出结果什么意思吧,谢谢。
 
用Matlab拟合一个函数中的三个常量未知数a,b,c,方程如下:
y=a.*x1+b+(a.*x1.^2+c+a.*x2.*x3+b.*x3+x4;

y都等于0,代入一系列x1、x2、x3、x4值。

返回了下面结果,请帮我看下结果是什么意思。想得到a b c三个常数的,是不是哪里出了问题???谢谢啦


c =

1


c =

1


c =

1


c =

1.000006055454452e+000


c =

2.299703729432441e+003


c =

2.299703729432441e+003


c =

2.299703729432441e+003


c =

2.299717655183629e+003


c =

3.655541335145097e+003


c =

3.655541335145097e+003


c =

3.655541335145097e+003


c =

3.655563471109150e+003


c =

3.826143564159564e+003


c =

3.826143564159564e+003


c =

3.826143564159564e+003


c =

3.826166733197645e+003


c =

3.830203817637201e+003


c =

3.830203817637201e+003


c =

3.830203817637201e+003


c =

3.830227011261962e+003


c =

3.830218552759134e+003


betafit =

Columns 1 through 2

4.414128508281884e+001 -4.364690005479137e+002

Column 3

3.830218552759134e+003


所有时间均为北京时间。现在的时间是 06:38

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