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Îҵıà³ÌΪ syms m1 m2;
m_M=[m1+2*m2,0];m_X=[m1,m2];
>> c=combntns(m_M,2);MM_cc=c(:,1)*c(:,2);
a=combntns(m_X,2);MM_aa=a(:,1)*a(:,2);

ÔËÐнá¹ûΪWarning: Imaginary parts of complex arguments ignored
> In combntns at 38
Warning: Imaginary parts of complex arguments ignored
> In combntns at 38
MM_aa =

(1/2*m1+1/2*conj(m1))*(1/2*m2+1/2*conj(m2))

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