It means that when you exchange the two operands, the result doesn't change.
Example 1: For any two real numbers, a + b = b + a. In the real numbes, addition is commutative.
Example 2: For any two real numbers, ab = ba. In the real numbers, multiplication is commutative.
Example 3: For square matrixes, AB is not the same as BA. Multiplication of matrixes is NOT commutative.
Example 4: For vectors, a x b = - b x a. The cross product of vectors is NOT commutative.
Chat with our AI personalities
NAND
It is no commutative.
That is true, matrix multiplication is not commutative.
The multiplicative inverse of a quantity may, when the operation of multiplication is commutative, be called its reciprocal. Thus the reciprocal of 72 is 1/72.
Matrix addition is commutative if the elements in the matrices are themselves commutative.Matrix multiplication is not commutative.