Dictionary:Cross product

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1. A type of vector multiplication. If i, j, and k are mutually orthogonal unit vectors so that two vectors A and B may be expressed in terms of components in these directions:

and

then the cross product A×B is orthogonal to both A and B:

Also called outer product.

2. The terms in an algebraic multiplication that involves elements of different kinds; e.g., is the cross product term in .