👉 In mathematics, a seminvariantive is a type of matrix or linear operator that satisfies certain properties. These properties include being positive definite (positive semi-definite), having an inverse that is also positive definite, and not being diagonally dominant. A positive semi-definite matrix is one whose eigenvalues are all positive. A symmetric matrix is positive semidefinite if its transpose is also positive semidefinite. An invertible matrix has a unique inverse, which means it is non-zero for every
