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Computations for a vibrating system diagonalize the variance. (English) Zbl 0820.73040
Summary: The transformations to diagonalize potential energy matrices for coupled harmonic oscillators will also diagonalize the variance when written in matrix form. After a brief review of a geometrical interpretation of the variance, the transformations are described and an example is given.
MSC:
74H45 Vibrations in dynamical problems in solid mechanics
74B99 Elastic materials
70J99 Linear vibration theory
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