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HEADERS_END
A commutative operation is a binary operation in which
a * b = b * a
i.e. the order does not matter
That is, the order does not matter.
Examples of commutative operations are: addition or multiplication of integers.
Examples of commutative operations are:
* addition of integers
* addition of matrices
* multiplication of integers
Examples of non-commutative operations are: composition of functions or matrix multiplication
Examples of non-commutative operations are:
* composition of functions
* multiplication of matrices
* multiplication of quaternions