The given MATLAB function `custom_max` calculates the maximum value of...

The given MATLAB function custom_max calculates the maximum value of a vector v.

Breakdown:

1. Function Definition: function M = custom_max(v)

   • This defines a function called custom_max that takes a single input, v, and outputs a value M.

2. Initialization: M = v(1);

   • The function initializes M as the first element of the vector v.

3. Iteration Loop: for x = v

   • The function iterates through each element of the vector v, assigning each value to the variable x.

4. Comparison:

   • Inside the loop, the condition if x > M compares the current value (x) to the current maximum value (M).
   • If x is greater than M, the function updates M to x.

5. Result:

   • After the loop completes, M contains the largest value in the vector v.

Final Output:

The function returns M, which is the maximum value in the input vector v.

In summary, this function is equivalent to MATLAB's built-in max function but implements it manually using a loop.