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单词 contravariant index
释义 contravariant index
[¦kän·trǝ`ver·ē·ǝnt `in´deks]
MATHEMATICS
A tensor index such that, under a transformation of coordinates, the procedure for obtaining a component of the transformed tensor for which this index has the value p involves taking a sum over q of the product of a component of the original tensor for which the index has the value q times the partial derivative of the pth transformed coordinate with respect to the qth original coordinate; it is written as a superscript.
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