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is there a function that returns the real root from a matrix that contains the roots of a function ?

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mohamed 2013-4-12

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采纳的回答： Walter Roberson

i want to return the real root from a vector contains the roots of a function, this vector contains both imaginary and real roots

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Walter Roberson 2013-4-12

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If R is the vector of roots, then

R(imag(R) == 0)

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