High Quality Content by WIKIPEDIA articles! In linear algebra, a two-form is another term for a bilinear form, typically used in informal discussions, or sometimes to indicate that the bilinear form is skew-symmetric. In differential geometry, a two-form refers to a differential form of degree two. In other words, a two-form is an order (or "rank") 2 skew-symmetric covariant tensor field. For a given vector space, the space of two-forms is spanned by the wedge product of basis one-forms. Linear algebra is a branch of mathematics concerned with the study of vectors, with families of vectors called vector spaces or linear spaces, and with functions that input one vector and output another, according to certain rules. These functions are called linear maps or linear transformations and are often represented by matrices.

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