2-Dimensional Array: IGCSE Computer Science Definition

What is a 2-dimensional array?

In IGCSE Computer Science, a 2-dimensional (2D) array extends the concept of a 1D array by adding another dimension. It is structured like a table with rows and columns, allowing data to be stored in a grid format.

How are 2D arrays useful?

2D arrays are used in applications such as spreadsheets, image processing, and game boards where data is organised in rows and columns.

Example in Python:

matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

print(matrix[1][2]) # Output: 6

Revision resources to ace your exams

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Arrays (CIE IGCSE Computer Science)

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IGCSE Computer Science Revision Resources