About Joe's article multiplication is not commutative

[Paul Berger (Canada)]

(01-31-2014 01:24 PM)Werner Wrote:  'Multiplication is commutative' means a*b is equal to b*a.
That holds for floating-point multiplications as well.
What Joe said was (a*b)*c is not necessarily equal to a*(b*c), which is not the same thing.
Werner

The property you are describing is associative, so I found with a bit of quick research earlier, and yes multiplication is associative. (3x2)x5 = 3x(2x5) but it breaks on calculators because of the limits of precision and that I think is the point of Joe's article.