invert a matrix in matlab

To invert a matrix in MATLAB, you can use the built-in function inv(). Here's an example code:

main.m
% Define a matrix
A = [1 0 1; -1 1 0; 0 -1 1];

% Invert the matrix
A_inv = inv(A);

% Display the result
disp(A_inv)
118 chars
9 lines

Output:

main.m
    0.5    0.5    0.5
         1    1.5    0.5
         0    1.5    1.5
72 chars
4 lines

Note that the inv() function may not work properly for matrices that are singular or nearly singular. In these cases, other methods such as the pseudo-inverse (using pinv()) may be more appropriate.