How to multiply two matrix in such a way that I... Learn more about matrix, matrices, vectorize, dynamically named variables are a bad idea MATLAB
Then the equation [E;K] = [A, B; B, D]^-1 * [N;M] is not mathematically defined. The inverse of a 6x6 matrix is 6x6. You cannot multiply this with a 4x5 matrix. Actually Matlab was devolopped for exactly such Matrix equations. So using the \ operator will do everything you ...
Sign in to comment. Richard Zapor on 31 Jul 2020 Vote 0 Link Open in MATLAB Online A special case of uint32/64 matrix multiply is where x is a binary matrix and y is a uint32/64 vector. This can be calculated very quickly and outputs a uint32/64 vector. ThemeCopy fu...
I am looking for a way to multiply one row values with every row values. Let's assume we have: A=[1 2 3; 4 5 6; 7 8 9] B=[a b c] I am looking for a way to have: C=[1*a 2*b 3*c; 4*a 5*b 6*c; 7*a 8*b 9*c] Thanks in advance for your comments...
How to multiply two matrices together?編集済み:Azzi Abdelmalek
In MATLAB, when you access a slice of an array and assign it to a variable, MATLAB will make a copy of that portion of the array into your new variable. This means that when you assign values to the slice, the original array is not affected. Try out this example to help explain the...
A matrix has rows and columns; when we want to multiply 2 matrices, the number of columns and rows matters for it to be possible. We describe matrices to their rows and columns, e.g., a 2 x 4 matrix has 2 rows and 4 columns. With all this information, the first matrix’s(left ...
for k = 1:max_iter % Multiply matrix A with vector x y = A * x; % Normalize the vector x = y / norm(y); % Compute the Rayleigh quotient (dominant eigenvalue) lambda = x' * A * x; % Check for convergence if abs(lambda - lambda_old) < tolerance fprintf('Converged in %d ...
How to element by element multiply all rows of a matrix in a loop?コメント済み:Star Strider
I have a fig file, and I have multiple curves in it. I would like to obtain the exact curves, above the x-axis, in positive sense. I lost the original data, and I would like to multiply my data which are below the x-axis by "-1...