What is the difference between dropping a class and withdrawing from a class?

Dropping a course can be done by using MyZou, telephone, or going to 130 Jesse Hall before the sixth week of the semester, and there will be no notation of enrollment for that course on the transcript. Withdrawing from a course can occur no later than two-thirds of the way into the semester, and a notation of W or F will appear on your transcript. Withdrawing from a course requires signature of instructor stating the grade of the student (W or F), and the advisor's and dean's signature on an add/drop form. If the grade is F, it is counted as an F in the term grade point average. The add/drop form is taken to 130 Jesse Hall.