10. (6 marks) Consider the formula for compound interest from the Excel test. where PV is the starting amount of an investment, i is the interest rate and n is the number of time units to be invested. Write a user-defined function (not an anonymous function) that takes in all the necessary arguments and returns the future value of the investment. For full marks, if the time or initial investment or interest rate are less than zero, simply print a message telling the user that the function cannot continue. 11. (8 marks) Write a MatLab function that takes in two arguments, a vector or 2-D matrix and a value to search for in the vector or matrix. The function returns a vector of two values, the position (row and column) in the vector or matrix where requested value is found. If the value is not found, the function returns 0 and 0. accomplish this task. Assume that all of the values in the vector or matrix are unique. Por half marks you can simply return the minimum value in the matriz. Use nested for loops to