👉 The term "antepenultimate" is a mathematical concept in linear algebra and vector spaces. It refers to the smallest non-zero vector (the antidiagonal) of a given matrix, where the dimensions are specified by two distinct numbers. In other words, it's like finding the smallest vector that is not part of any row or column but also has no effect on the remaining vectors when added together. This concept can be useful in various fields such as linear algebra, optimization problems, and computer