The eigenvalues of sqrt(A) sorted from lowest to highest are
 [0.35642657517407145, 0.7125099162498948, 1.0192134455180286, 1.2551003239110445, 1.5087815543349232, 1.6075732488456407]


The value of the real part of Xa for the first mass is  [0.24897185]


The value of the imaginary part of Xb for the last mass is  [0.162211]

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