MATLAB: How to call two non-empty square matrixes

fprintfmatrix arraysquarematrices

his file to get the size of both input variables A and B and add further

statements to check that

A is a non-empty square matrix and B has the same number of rows

as A

% The input A should be a square matrix and B should have the same

% number of rows as A.

% On return the outputs U and Y are such that U is upper triangular

% and U*X=Y is an equivalent linear system to A*X=B.

Y=[];

U=[];

Best Answer

Check if A is square

if size(A, 1) == size(A, 2)

To check if size of A equals the size of B

if isequal(size(A), size(B))

To check if "B should have the same number of rows as A":

if size(A, 1) == size(B, 1)

Related Solutions

MATLAB: Creating for loop for matrixes

To=cell(1,10);
Fo=To;
for k=1:10
  autocor=xcorr(x(:, 1));
  [pks,locs] = findpeaks(autocor)
  X=pks;
  [a,z1] = max(X);
  X(z1)= NaN;
  [b,z2] = max(X);
  To{k}=(abs(locs(z1)-locs(z2)))/Fs;
  Fo{k}=1/To{k}
end

MATLAB: How to properly sum 3D matrixes

Use this function:

function M=sumnd(M,dim)
s=size(M);
M=permute(M,[setdiff(1:ndims(M),dim),dim]);
M=reshape(M,[],s(dim));
M=sum(M,2);
s(dim)=1;
M=reshape(M,s);
end

Code:

A=sumnd(M,3) ;
A = simplify(A) ;

Result:

[ x1*y1*(z1 + z2 + z3), x1*y2*(z1 + z2 + z3), x1*y3*(z1 + z2 + z3)]
[ x2*y1*(z1 + z2 + z3), x2*y2*(z1 + z2 + z3), x2*y3*(z1 + z2 + z3)]
[ x3*y1*(z1 + z2 + z3), x3*y2*(z1 + z2 + z3), x3*y3*(z1 + z2 + z3)]

Best Answer

Related Solutions

MATLAB: Creating for loop for matrixes

MATLAB: How to properly sum 3D matrixes

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