Linear Algebra, Mathematics, Matrix Multiplication, Symmetry, Machine Learning.
finding our matrix U is even easier, and we don’t have to worry about doing the pesky thing where we divide U out so that we can have a matrix D containing the pivots and U with only 1’s along the diagonal. As an example, let’s compute a 2 x 2 matrix A and factorize it into LDL(T). So there we go —