👉 Submatrixes are subsets of a matrix that contain only one row or column. This means that they consist of elements from the same row and column, without any other rows or columns in between. For example, if we have a 2x2 matrix, we can consider its submatrices to be those with two rows (the first and second rows) and two columns (the first and second columns).
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What is the definition of Submatrix? 🙋
👉 In mathematics, a submatrix is a subset of a larger matrix. It can be thought of as a smaller part of a matrix that contains only one row and column, except for possibly some rows or columns from the main matrix. Submatrices are often used in algebraic geometry to represent geometric objects like surfaces or curves. For example, consider a 3x3 matrix A with elements: \[A = \begin{bmatrix} 1 & 2 & 3 \\
