A dyadic in linear algebra is an entity which dotted into a vector gives another vector. 'Dotted' here means the dot product of the dyadic with the vector. A dyadic then is also a specific kind of operator.

Dy*ad"ic (?), a. [Gr. , fr. two.]

Pertaining to the number two; of two parts or elements.

Dyadic arithmetic, the same as binary arithmetic.

© Webster 1913.

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