% create a matrix of any size that asks for rows and column where the first row is one and th last row is 0 in matlab

You can create a matrix of any size in MATLAB by taking user input for the number of rows and columns. You can use a loop to assign values to the matrix such that the first row is one and the last row is zero. Here's an example code snippet:

main.m
% take user input for number of rows and columns
num_rows = input('Enter the number of rows: ');
num_cols = input('Enter the number of columns: ');

% create an empty matrix of the specified size
mat = zeros(num_rows, num_cols);

% loop through rows
for i = 1:num_rows
    % if it's the first row, set values to 1
    if i == 1
        mat(i,:) = 1;
    % if it's the last row, set values to 0
    elseif i == num_rows
        mat(i,:) = 0;
    % for other rows, leave the values as zeros
    else
        mat(i,:) = 0;
    end
end

% display the matrix
disp(mat);
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In this code, we take user input for the number of rows and columns using the input function. Then, we create an empty matrix of the specified size using the zeros function. We then loop through the rows using a for loop, and for each row, we use an if statement to check if it's the first or last row, and set the values to 1 or 0 respectively. For all other rows, we leave the values as zeros. Finally, we display the matrix using the disp function.