matlab解非线性方程组解出来是复数怎么办?我用‘solve’求解下列方程[x,a1,a2]=solve('x=atan((1-a1)/(1+a2)/18/0.3)','a1/(1-a1)=(pi^2/9*cos(x)+2*pi^3/18/18*sin(x))/(8*pi*sin(x)*sin(x))','a2/(1+a2)=(pi^2/9*sin(x)-pi^3*2/18^2*cos(x)

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matlab解非线性方程组解出来是复数怎么办?我用‘solve’求解下列方程[x,a1,a2]=solve('x=atan((1-a1)/(1+a2)/18/0.3)','a1/(1-a1)=(pi^2/9*cos(x)+2*pi^3/18/18*sin(x))/(8*pi*sin(x)*sin(x))','a2/(1+a2)=(pi^2/9*sin(x)-pi^3*2/18^2*cos(x)

matlab解非线性方程组解出来是复数怎么办?我用‘solve’求解下列方程[x,a1,a2]=solve('x=atan((1-a1)/(1+a2)/18/0.3)','a1/(1-a1)=(pi^2/9*cos(x)+2*pi^3/18/18*sin(x))/(8*pi*sin(x)*sin(x))','a2/(1+a2)=(pi^2/9*sin(x)-pi^3*2/18^2*cos(x)
matlab解非线性方程组解出来是复数怎么办?
我用‘solve’求解下列方程
[x,a1,a2]=solve('x=atan((1-a1)/(1+a2)/18/0.3)','a1/(1-a1)=(pi^2/9*cos(x)+2*pi^3/18/18*sin(x))/(8*pi*sin(x)*sin(x))','a2/(1+a2)=(pi^2/9*sin(x)-pi^3*2/18^2*cos(x))/(8*pi*sin(x)*cos(x))','x','a1','a2')
求出来是两组复数解.
怎么才能得到实数解?
我也不知道是不是肯定有实数解.

matlab解非线性方程组解出来是复数怎么办?我用‘solve’求解下列方程[x,a1,a2]=solve('x=atan((1-a1)/(1+a2)/18/0.3)','a1/(1-a1)=(pi^2/9*cos(x)+2*pi^3/18/18*sin(x))/(8*pi*sin(x)*sin(x))','a2/(1+a2)=(pi^2/9*sin(x)-pi^3*2/18^2*cos(x)
matlab求的解是整个复数域里的一切解,复数域已经包括了实数在内,如果它没有解出实数解,就表明没有实数解,你的方程只有两个复数解.