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3.2 Multi-dimensional Array Format

This section describes the format in which multi-dimensional arrays are stored in FFTW. We felt that a detailed discussion of this topic was necessary. Since several different formats are common, this topic is often a source of confusion among users.

• Row-major Format:
• Column-major Format:
• Static Arrays in C:
• Dynamic Arrays in C:
• Dynamic Arrays in C-The Wrong Way: