 the grade A- is accepted as a valid input, but A- is not included in the valid inputs in the user guide.  <!--session: 1680252384863-f63c298f-450b-4967-aa16-6af4e19d5bd4--> <!--Version: Web v3.4.7-->
the grade A- is accepted as a valid input, but A- is not included in the valid inputs in the user guide.