(mathematics) A square matrix C with 0 on the diagonal and +1 and −1 off the diagonal, such that CᵀC is a multiple of the identity matrix I.

(linear algebra) For given field F (especially the real numbers), even order 2n and nonsingular skew-symmetric matrix Ω, any 2n×2n matrix M with elements in F such that MᵀΩM = Ω (where Mᵀ denotes the transpose of M).

plural of passive matrix

plural of symmetric matrix

(mathematics) A matrix whose entries are all zero.

(linear algebra) A square matrix which is not invertible.

(physics) Abbreviation of Cabibbo-Kobayashi-Maskawa matrix.

A type of organizational management in which people with similar skills are pooled for work assignments and may have more than one manager.

plural of S-matrix

(physics) Abbreviation of scattering matrix.