how to minus and subtract three matrices in matlab

To subtract three matrices in MATLAB, you can use the '-' operator.

Here's an example code:

main.m
% Define the matrices
A = [1, 2, 3; 4, 5, 6; 7, 8, 9];
B = [10, 11, 12; 13, 14, 15; 16, 17, 18];
C = [19, 20, 21; 22, 23, 24; 25, 26, 27];

% Subtract the matrices
result = A - B - C;

% Display the result
disp(result);
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This code defines three matrices A, B, and C. Then, it uses the '-' operator to subtract B and C from A. The result is stored in the variable 'result'. Finally, the result is displayed using the disp function.

Note: The dimensions of all three matrices (A, B, and C) must be the same for subtraction to be possible.