Hurwitz matrix | Math Forums
2024年10月31日 · Dear all, I need a help. How to define a L matrix to make A+BL is a Hurwitz matrix. A and B matrix are given below.
Can adding variables solve 3-SAT in polynomial time with MOD 2?
2024年11月12日 · 1. Properties of an Invertible Matrix mod 2 a)If "A" is invertible modulo 2, it means that "A" is a square matrix, and each column of "A" is linearly independent. b)Thus, the equation "A x = 1 (mod 2)" has a unique solution for "x" …
Matrics AB=BA where B is a 2x2 matrix | Math Forums
2024年9月29日 · Matrics AB=BA where B is a 2x2 matrix. Thread starter JojoBizarros; Start date Sep 29, 2024; J. JojoBizarros.
Matrices | Math Forums
2024年9月25日 · I may be misinterpreting the question, but it sounds like 12 tasks to me. Let D_1,D_2 be any two N×N diagonal matrices, s_1,s_2,c three scalars, U_1,U_2 two N×N upper triangular matrices, and L_1,L_2 two N×N lower triangular matrices.
How do I normalize a matrix? - Math Forums
2011年3月21日 · Anyway, for one of the examples that I found (Introduction to Matrix Algebra), to column normalize the matrix X 2, 1 3, 2 1, 3 5, 4 4, 5 they used the first vector (column) to calculate the normalizing constant c. They did this by by summing the squares of each element in the first column, and taking the square root, giving c = 7.416.
Inverse an 8x8 symmetric matrice?! - Math Forums
2013年5月13日 · If you are using gaussian elimination by augmenting the identity matrix and then performing row operations , this helps. If the matrix is positive definite it will help in the LU decomposition, but i'm not sure this will be easier since LU decomposition needs to keep track of too many things. P.S.
2 more simple questions that I got stuck at - Math Forums
2013年10月18日 · Finally, multiply out four entries of the matrix AKB and compare these to the corresponding entries in the matrix C. This will give you a system of four equations in four unknowns, which should yield a solution for K.
What does the following mean? - Math Forums
2024年12月18日 · I will try to ask the matrix. Reactions: 1 users. S. SDK. Joined Sep 2016. 3K Posts | 2K+ USA. Dec 19, 2024 #6
Best way to calculate a 5x5 determinant? | Math Forums
2018年1月7日 · And now we get a determinant of 4\times 4 matrix. In this case, we don't have many zeros as previous case, it is better to use elementary operations on the rows - or the columns - of that last matrix to get a many zeros in one row - or one column-. We will get a determinant of 3\times3 matrix which can be computed directly by the rule of Sarrus.
4x4 elimination matrices - Math Forums
2018年10月3日 · In this 4x4 elimination matrices E21, E32 and E43 how E43 became 3/4 What I know from 3x3 matrices: E21 is -a12/a11 and E31 is -a31/a11 and E32 is -a32/a12 or the elimination multiplier applied to identity matrix I have no experience on …