# Difference between revisions of "Dictionary:Principal direction"

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One of the natural directions of a system. When oriented in the principal directions, cross-coupling terms disappear, tensor impedances decouple, nondiagonal terms of matrices vanish, or other simplifications occur. The normal curvature has its maximum and minimum values in the principal directions. | One of the natural directions of a system. When oriented in the principal directions, cross-coupling terms disappear, tensor impedances decouple, nondiagonal terms of matrices vanish, or other simplifications occur. The normal curvature has its maximum and minimum values in the principal directions. | ||

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## Latest revision as of 10:33, 5 April 2019

One of the natural directions of a system. When oriented in the principal directions, cross-coupling terms disappear, tensor impedances decouple, nondiagonal terms of matrices vanish, or other simplifications occur. The normal curvature has its maximum and minimum values in the principal directions.