A computational tool designed to determine the set of all vectors that, when multiplied by a given matrix, result in the zero vector. For example, consider the matrix [[1, 2], [2, 4]]. The vector [2, -1] lies within its set of solutions because multiplying the matrix by this vector yields the zero vector. This set forms a vector space, and finding it is crucial in various mathematical and engineering applications.
Determining this vector space provides essential insights into the properties of linear transformations and systems of linear equations. It can be used to find the general solution to a homogeneous system of equations, identify dependencies among the columns of a matrix, and analyze the stability and controllability of dynamical systems. Historically, the concept is tied to fundamental advancements in linear algebra, contributing to fields like computer graphics, data analysis, and cryptography.
