Write an m-file program that uses the switch-case construction to display a number corresponding to a day (supposing that numbers one to seven belong to days in the order of Monday to Sunday,...

Write an m-file program that uses the switch-case construction to display a number corresponding to a day (supposing that numbers one to seven belong to days in the order of Monday to Sunday, respectively) when the user enters its first three letters. Make sure that your program displays the correct result regardless of whether the input is in capital or small letters