ASSOCIATIVITY one of my first frustrations when first engineering student went to go looking for this word in the DRAE. Not only did the mathematical meaning he had been hearing in Calculation I not appear, but he was not quite. It was 1963 and today it's still the same. In economics: mechanism of cooperation between two or more small or medium-sized entities which, while maintaining their legal and commercial independence, voluntarily come together to enhance the creation of economies of scale and other benefits. In mathematics: between two numbers, it means that the sum or multiplication of them will give the same result, no matter the order of the operation.
