Define a series of matrices

How do I define the next series of matrices

A=[0,1;sigma,0].

where

sigma=[-5:0.01:-4]

And I want the label to be as follows

A1=[0,1;sigma(1),0]

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

Answer 1

[Stephen23]

Using numbered variables is not going to be neat or efficient. The MATLAB approach would be to use one array, e.g.:

sigma = -5:0.01:-4; % the square brackets are superfluous
N = numel(sigma);
A = [zeros(N,1),ones(N,1),sigma(:),zeros(N,1)]

Each row of A is one of your output vectors, e.g.:

A(1,:)

[Mou Ab]

but we get a vector not a matrix

[Walter Roberson]

sigma = -5:0.01:-4; % the square brackets are superfluous
N = numel(sigma);
A = [zeros(1,1,N),ones(1,1,N); reshape(sigma,1,1,N), zeros(1,1,N)];

A is now a 2 x 2 x 101 array. A(:,:,37) would correspond to what you were hoping to see as a separate variable A37