編集済み:Andrei Bobrov
I got a question about app deisgner. I am using 2 edit fields (text). The first one is to write a value (e.g : 2). For the second I would like matlab to calculate directly (without action) the multiplication of the first edit field by 3,...
Sign in to comment. Accepted Answer Thorstenon 14 Nov 2016 2 Link functiony = mypolyval(c0,c,x) ifisempty(c) y = c0; else y = c0 + power(x, 1:numel(c))*c(:); end The case y = c0 + c*x is already covered by the else. And yo...
Check the commutation relation for multiplication between two symbolic matrix variables. Get A*B - B*A ans = A B−B A Get isequal(A*B,B*A) ans = logical 0 Check the commutation relation for addition between two symbolic matrix variables. Get isequal(A+B,B+A) ans = logi...
and premultiplication of a matrix by U(s) thus corresponds to application of a sequence of elementary row operations. Therefore Theorem 4.2.1 can be restated, for the case of nonsingular Q(s), in terms of elementary row operations rather than premultiplication by a unimodular U(s). If red...
Are the matrices square? If they're not square, the*operator is matrix multiplication, if they're likeNxMthis is asking Matlab to doNxM*NxMwhich doesn't work. If you want to multiply them component-wise, the operator is.*. Seeherefor example. ...
edit: the above assumes you meant to perform element-wise multiplication (using.*instead of*). If you were actually intending matrix multiplication, then the numbers of columns of the first matrix must be equal to the number of rows of the second matrix. Multiplying by a column o...
% multiplication factor for area (to be adjusted) mult = 10^3; % plot the truss Nel = size(elem,1); figure(2); plot(node(:,1),node(:,2),'k.') holdon; axisequal; foriel = 1:Nel elnodes = elem(iel, 1:2); nodexy = node(elnodes, :); ...
Why would the dimension end up as 1 x 1? Your second calculation appears to do matrix multiplication of two 1 x 2, which would be an error. Or possibly your [Kx] is intended to be 2 x 1 -- but Simulink notes 2 x 1 differently than2. ...
One scalar multiplication algorithm that has been proved to be resistant against some comparative and sophisticated Simple Power Attacks [6,7] is the popular Montgomery Power Ladder (MPL) algorithm. As can be seen in Algorithm 1 where MPL is presented, there is considerable regularity in each ...