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求大神帮忙，非线性方程最小二乘法。
f1=fittype('a*(1-b*y1.^2).*y2+c*y1+d/2*sin(e*t+f)','problem',{'y1','y2'},'coefficients',{'a','b','c','d','e','f'},'independent',...
nästan 3 år ago | 0
| accepted
