求助:关于二元多项式拟合问题。
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采用正交函数最小二乘法拟合二元函数,如下:a=[-4.764 -1.764 1.236 4.236 7.236 -4.764 -1.764 1.236 4.236 7.236 -4.764 -1.764 1.236 4.236 7.236 -4.764 -1.764 1.236 4.236 7.236 -4.764 -1.764 1.236 4.236 7.236];b=[-6 -6 -6 -6 -6 -3 -3 -3 -3 -3 0 0 0 0 0 3 3 3 3 3 6 6 6 6 6 ];
Cx=[0.76325 0.75503 0.75596 0.76111 0.77578 0.75268 0.73829 0.73597 0.75714 0.77067 0.7381 0.73252 0.7309 0.74244 0.76811 0.75268 0.73829 0.73597 0.75714 0.77067 0.76325 0.75503 0.75596 0.76111 0.775782];
求出Cx=f(a,b)的表达式。没有函数模型
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