9. Multi-dimensional Arrays

In the previous two chapters, we discuss one-dimensional arrays. One-dimensional arrays help in writing down a list of items that relate to one thing, for example, the grades of one student, or the grades of a class in one assignment. It is more powerful if we can write down the grades of all students in all course assessments. This would look like a multi-column table like this:

Student Name1	Lab 1	Lab 2	Lab 3	Lab 4	Lab 5
Muhammad Ali	10	9	10	10	9
Whitney Houston	7	10	1	9.5	8
Elon Musk	4	8	7	3	6
Melba Mouton	10	10	7	10	11
Malala Yousafzai	9.5	9	9.5	8	7
Steve Jobs	9.5	8	9	10	9
Lionel Messi	10	10	10	10	10
Mohamed Salah	11	11	11	11	11

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1

All names referred here are fictional character names, and any similarities between these names and reality is probably by coincidence.