3. Write a matlab function that uses the low-level formatted read commands (fgetl, fscanf) to read the numerical values from a file (with the format shown below), sum the values, and output the sum to the command window. Be sure to appropriately open and close the file. You can use any text editor (e.g. notepad, textedit, the matlab editor) to create the file. Assume the file look like this: heights 3.2 4.2 3.11 5.3 6.3