Contragredient definition

(mathematics) Generally, an object contragredient to another is the object inversed and transposed.
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(mathematics) A contragredient representation in linear algebra is the transpose of the former representation of an inverse object.
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(mathematics) A contragredient matrix is a transpose of an inverse matrix.
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Origin of contragredient

  • Neologism based on the English prefix contra- and gredient. Gredient may be based on the English word grid, since the mathematical objects referred to as contragredient are often represented as grids of numbers.

    From Wiktionary