error checks in matlab

In MATLAB, you can use the try-catch blocks to handle errors. This is an effective way to deal with errors especially when running complex code.

Here's an example:

main.m
try
   A = [1 2; 3 4; 5 6];
   B = [1 2 3; 4 5 6];
   C = A*B;
catch ME
   fprintf('Error Message: %s\n\n', ME.message);
end
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In this example, the code will try to perform the matrix multiplication of A and B. If the multiplication fails, the control will transfer to the catch block where you can specify what actions to take when an error occurs.

The ME object contains information about the error including its message and stack trace. You can use it to display a message or log the error.

Another way to handle errors is by using the assert function. With assert, you can check if a condition is true, and if it's not, an error will be thrown.

Here's an example:

main.m
my_variable = -10;
assert(my_variable > 0, 'my_variable must be a positive value');
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In this example, an error will be thrown if my_variable is not a positive value. The message parameter is optional, but it's a great way of informing the user of the reason for the error.

Overall, handling errors in MATLAB is essential to make your code more reliable.