A+ in transcript and GPA
How an A+ is treated varies from school to school. In the traditional American grading system, an "A" contributes a 4.0 to one's GPA, an "A-" contributes a 3.7, a "B+" contributes a 3.3, a "B" contributes 3.0, etc. In many universities, 4.0 represents the maximum possible GPA, and so an A+, although it may appear on the transcript next to a course, also only contributes 4.0 to one's GPA. At other universities (such as e.g. Columbia), an A+ contributes 4.3 to one's GPA. 

None of this matters very much of course.